Trial of Patrick Eugene Prendergast


The trial of Patrick Eugene Prendergast was held in December 1893 in the Cook County Criminal Court. Prendergast was tried on the charge of murder in the first degree for his actions in having Carter Harrison III assassinated. Prendergast had been motivated to assassinate Harrison by a delusion: Prendergast held that he was entitled to be appointed the city's corporation counsel, and had been wrongfully deprived by Harrison of such an appointment. The central question in dispute during the trial was the state of Prendergast's sanity as it related to the commission of Harrison's killing. Prendergast's defense attorneys entered a plea in his defense that he was guilty by reason of insanity. They did not contest that Prendergast had killed Harrison, instead offering the defense that he had done so while under the control of an insanity that legally rendered him non-culpable for the murder. Prosecutors, including Jacob J. Kern and lead prosecutor A. S. Trude, argued that Prendergast had been sane and was culpable of murdering Harrison. The trial was presided by Judge Theodore Brentano of the Superior Court of Cook County. The jury delivered a verdict finding Prendergast guilty beyond a reasonable doubt, and sentenced him to death by hanging.
Harrison's assassination had been a major news item, and the trial attracted great attention. Public sentiment was unsympathetic towards Prendergast, and contemporary discourse widely disbelieved the argument that had been made in his defense. United States news media and leading figures in its politics and business lauded Prendergast's conviction and sentencing. The popular view expressed was that his execution would serve as an example to deter other "cranks" from carrying out similar acts of violence against government officials. In contrast to contemporary discourse on the trial, modern retrospectives often believe Prendergast to have been insane, and the jury to have been incorrect in its judgement that he was not.
After he was sentenced to be executed, attorneys Clarence Darrow, James S. Harlan, and Stephen S. Gregory represented Prendergast in efforts to appeal this sentence. A petition was granted for an inquiry to determine the current state of Prendergast's sanity. At the time, Illinois had a law which forbade the state from carrying out the execution of individuals currently suffering from insanity. This statute protected those that had become insane subsequent to their commission of crime from being executed until such a time that they were determined to be rid of their insanity. The jury in this inquiry found Prendergast to be currently sane, and he was executed by hanging on July 13, 1894.

Background

Relevant contemporary legal doctrine on insanity

At the time of the trial, courts in the United States used the M'Naghten rules as their test for criminal insanity. In the state of Illinois this was supplemented by doctrine centered on the concept of irresistible impulse, which considered that simple knowledge of "right and wrong" was insufficient to prove sanity in cases in which there was still not a possibility of self-control. While parts of the United States were already employing the concept of diminished capacity, Illinois had not formally adopted it.
At the time, expert witnesses for matters of sanity tended to be medical doctors regardless of whether they held any specialty granting them understanding of behavior. The specialized fields of psychiatry and psychology had not yet been properly established. Additionally, nonprofessionals were held by courts as permissible expert witnesses. This meant that a mere "common sense" view of sanity could be admitted as expert opinion. Resultingly, when the prosecution brought a medical doctor to testify that Prendergast's display of fear while jailed was an indication of sanity, the medical doctor was not an alienist. During the trial, several medical doctors testified on behalf of the prosecution to assert that, while Prendergast was paranoid, he still knew right from wrong and that he was capable of standing trial for the murder. Expert testimony made up a very large portion of the testimony heard in the trial.

Prendergast's life

Prendergast was born on 6 April 1868 in Cloonamore townland, Inishbofin, an island off the west coast of Ireland. He was baptised in St Colman's Church on 12 April 1868 His parents were Ellen King and Patrick Prendergast, both of whom were described as teachers at their marriage in Inishbofin on 2 July 1865. His grandfather, William Prendergast, who lost an arm in Pamplona, was an army pensioner who was reported to have died insane. His mother had "repeated attacks of hysterics" and his father died of consumption.
Prendergast was reported to have suffered a severe head injury from a fall at the age of four, from which he was unconscious for a long period of time and suffered vomiting for four weeks after. He was described as a peculiar child, solitary, irritable and excitable, with a poor memory who did poorly in school. Patrick arrived in New York on 20 May 1873, aged 5, traveling with his brother William, aged 8, on the SS France. He left home at 16 because of imaginary persecution and by 18 had developed grandiose ideas of his capabilities and became a fanatic for the single-tax promoted by Henry George.
Prendergast became a newspaper distributor in Chicago, where he lobbied for improvements in Chicago's railroad level crossings, which he saw as a danger to the public. He supported Carter Harrison's 1890s election campaigns under the delusion that if Harrison won the election, Prendergast himself would receive an appointment as the city's corporation counsel. Prendergast had a fixation with writing postcards. In order to support Carter Harrison's pursuit to regain the mayoralty, Prendergast sent rambling postcards to prominent Chicagoans urging them to vote for Harrison. Among those who received such a postcard was prominent lawyer A. S. Trude, who would later prosecute the case against Prendergast in the murder trial that followed the assassination. Prendergast sent these postcards in support of Harrison for more than two years before Harrison was successful in winning the 1893 Chicago mayoral election. Prendergast believed that his letters had been responsible for Harrison's success in the election.
Prendergast visited Chicago City Hall under the delusion that he had been appointed corporation counsel by Harrison. After Prendergast was insistent to a clerk that he held the position, he was brought to meet Adolph Kraus, the incumbent corporation counsel, who showed Prendergast his office and teased him by facetiously asking if he wanted the job. While Prendergast did not have the education or qualifications that required for the office, he was nevertheless angered that he had not been appointed by Harrison to it. After Harrison had spent six months in office without appointing him corporation council or granting him any recognition, Prendergast began to desire revenge against Harrison for the perceived slight.
Prendergast wrote threatening letters to both Harrison and Kraus, a fact which was quickly discovered by investigators following the assassination. One letter to Kraus read, "I want your job. Do not be a fool. Resign. Third and final notice."

Assassination of Harrison

Angry at Harrison for having not appointed him to the office, Prendergast visited Harrison at his home on October 28, 1893, after ringing the door bell Prendergast was admitted by a maid who went to wake the mayor. As Harrison stepped into the hallway from the parlor, Prendergast approached and shot the mayor three times with a.38 revolver, hitting him first in the abdomen above the navel, a second time under the left arm with a shot that pierced his heart, and a third time at point-blank range through the left hand.
Hearing the gunfire, Bartha Riesberg, ran towards the site of the shooting with a pistol of his own, firing three times at the escaping Prendergast without hitting him, while avoiding being hit when Prendergast returned fire. Mortally wounded, Harrison died in his home at 8:25 p.m.
The escaping assassin was chased down Ashland Avenue by several citizens and a police officer, who he evaded. Prendergast went to the Des Plaines Street police station, he surrendered himself. He still had the gun in his possession. When interviewed by police, he gave varying stories as to his motive, including the failed appointment and the mayor's failure to elevate train track crossings. The smell of burned powder and the revolver's empty chambers affirmed to the police department that Prendergast was telling the truth.
Prendergast was taken from the Des Plaines Street station to the Central Station, located downtown, where the building was quickly surrounded by a crowd of 5,000 people. Fearing potential mob violence, at 11:15 p.m., Prendergast was stealthily hurried into a wagon and taken to another station located on the North Side of the city, where he was lodged in the county jail pending trial.
Harrison's assassination was met with a significant national reaction,
and was one of the most sensationalized events in then-recent memory. Media reports in the days immediately after the assassination questioned Prendergast's sanity. Initially, the public viewed Prendergast as a mentally troubled individual. However, as more about his background was learned, the public began to view him more as an angered egomaniac that had killed as an act of revenge.

Investigations, indictment, and arraignment

Harrison's autopsy and coroner's inquest

The autopsy of Harrison was conducted by Dr. Ludvig Hektoen and Dr. Louis G. Mitchell. As a witness during the prosecution's presentation in the trial, Mitchell testified that he had found five wounds on Harrison's corpse. He found that one of the first two bullets that had been fired had passed through one of Harrison's finger. He found that the bullets from final three shots lodged in Harrison's corpse: one bullet had been found in the median plane of the body, and that one was found four inches to the right and a little below Harrison's heart, and that another was found in Harrison's back below the tip of his scapula. The three bullets were extracted, and would be used by prosecutors as evidence in the trial. Mitchell would testify that, besides the bullet wounds, Harrison's body appeared to have been in remarkable health for his age. Hektoen testified in agreement with Mitchell's assessment.
The morning following the assassination, James McHale conducted the coroner's inquest at the Harrison residence. During the inquest, Prendergast stood in the foyer where the assassination had occurred while witnesses gave testimony in the south back parlor of the residence. The witnesses included Harrison's son William Preston, maid Mary Hansen, and coachman Barth Reisberg. The only other two witnesses interviewed were police sergeants. Before coroner’s jury, witnesses identified Prendergast as the killer and described the events of the previous night.
Prendergast communicated sympathy for Harrison's bereaved family, but refused to speak to the inquest jurors.
The jurors of the coroner's inquest agreed with the testimony of the witnesses as to the manner of Harrison's death, and decided to remand the matter to a grand jury that had been impaneled.

Prendergast's pre-arraignment jailing

After being present for the coroner's inquest, Prendergast was returned to the Cook County Jail, and placed in cell 11. At the jail, Prendergast was reportedly subject to regular harassment from fellow inmates. While at the jail, Prendergast is believed to have crossed paths with fellow detainee George Craig, who was facing trial for the murder of Emma Werner. That crime had occurred only days into the run of the World's Fair and drew heavy attention. Craig was acquitted.

Grand jury indictments and arraignment

On November 2, the grand jury approved an indictment of Prendergast for first-degree murder. Thereafter, on the same day, Prendergast was arraigned before Jude Oliver Horton. Prendergast plead "not guilty". He was described as heavily sweating, trembling, "cowering in terror", and having spoken in a near-whisper when giving his plea.

Attorneys

Prosecutors

A. S. Trude served as the prosecutor, opting to dedicate his time to doing so rather than running for mayor, despite having initially been regarded as a likely front-runner in the 1893 Chicago mayoral special election. Trude agreed to be the lead counsel prosecuting the state's case against Prendergast after having been requested to do so by both the county government and the family of Harrison. This is arguably the most noted matter that Trude worked on in his legal career. Trude was joined by Jacob J. Kern as well as assistant state's attorney James Todd.
Trude was one of the most noted attorneys of his time. He had begun practicing law after his admission to the bar in 1871. He had some experience with prosecutions, having been employed by in his early legal career by then-mayor Joseph Medill to prosecute criminal cases on behalf of the city. However, most of Trude's legal work following the end of Medill's mayoralty had been as a civil defense attorney in tort cases, with an emphasis on libel lawsuits. Trude's connection with Medill had led to frequent work defending Medill's Chicago Tribune newspaper in libel and tort lawsuits. He also represented Chicago Times editor Wilbur F. Storey in hundreds of libel and tort lawsuits,, and further clients such as the Inter Ocean newspaper in libel lawsuits. Trude had also been the solicitor to Michael Cassius McDonald in his 1889 divorce from his wife, Mary. He had also been a legal counsel in many high-profile cases related to the contesting of wills, winning cases on the wills of Wilbur F. Storey, Amos J. Snell. While he did provide some representation in criminal trials, and was very successful in the cases he argued, besides his early-1870s prosecutorial work for the municipal government of Chicago he had almost only represented defendants in criminal trials.
Todd graduated from the Chicago College of Law in 1890, and had been hired to his position as an assistant state's attorney in February 1893. By the time of Prendergast's murder trial, he had prosecuted twenty murder cases, winning nineteen convictions to one acquittal. However, at 28 years of age he was regarded as rather young, and it was noted that only five years earlier he had been a railroad conductor for the Pullman Company. He would be regarded to have conducted himself strongly in the Prendergast trial.

Defense attorneys

Prendergast was assigned Robert Essex and Richard A. Wade as court-appointed defense attorneys. Wade, whose primary experience was in claims work for the Pennsylvania Railroad, served as his lead defense attorney during the murder trial. By the time the trial began, Prendergast's legal team had grown, with his brother having hired John T. McGoorty and John Heron to join the court-appointed attorneys. Prendergast requested to represent himself pro se, but Judge Brentano refused to allow that.
Wade previously served as the deputy sheriff of Menard County, Illinois in the early 1870s, which familiarized him with the court system. In 1874, he enrolled at Illinois Wesleyan University where he completed the school's law course. He worked in a leading law office of Bloomington, Illinois briefly before moving to Chicago and practicing law there. He was involved in a number of prominent cases prior to Prendergast's As a defense attorney, he came into prominence with his successful defense of Dr. Westerberger, which was a prominently covered case. He also represented Dennis Callihan in an extradition case. He was involved in a nationally-prominent case of Phillip DeLacy v. Brooklyn Jockey Club.
Robert Essex was approximately 29 years of age. He was educated at Saint Louis University and Pennsylvania Military College; and studied law at The Abbott School in Maine and a law firm in Grant City, Missouri. He had been admitted to the bar in Missouri in 1887. He had moved to Chicago in 1892, and had only just been admitted to the Illinois bar in 1893.
Heron was approximately 29 years of age, and had only been admitted to practice by Chicago's bar association earlier in 1893. He had only six months of practice as a lawyer prior to the start of the trial. McGoorty was 27 years of age, and had been admitted by the Illinois bar in June 1892. He was regarded to be a strong orator. Both Heron and McGoorty would be regarded as having performed promisingly during the trial.

Court officials

Fred A. Busse was one of the bailiffs assigned to the courtroom during the trial. Busse would subsequently serve as mayor of Chicago from 1907 through 1911. Jail Clerk Benjamin Price was tasked with Prendergast's transport. Price would be called to the stand during the trial to testify about Prendergast. Other court officials involved in the courtroom included Court Clerk Fitzgerald.

Continuance and reassigning of judge

November 6 session (presided by Judge Dunne), granting of a continuance

The criminal jury trial against Prendergast for Harrison's murder took place in the Cook County Criminal Court. The trial was originally scheduled to begin on November 6, 1893, with Judge Edward Fitzsimmons Dunne to preside. Dunne would in subsequently garner political note in the 20th century, serving a term as mayor of Chicago, and a term as governor of Illinois.
In the brief session November 6 before Dunne, the defense argued that it lacked the time to prepare, and successfully requested a continuance from the court. This delayed the scheduled start of the trial to November 27.
The November 6 proceeding began around 11am local time, with Jailor Moris escorting Prendergast into the courtroom. The Chicago Inter Ocean observed of the defendant's appearance,
When Judge Dunne asked Prendergast to answer whether he was represented by counsel, Prendergast did not answer. Morris offered an answer on his behalf remarking, "I think he is, your Honor." Wade then stepped forward to inform that court that he and Essex would be representing the defendant. State's Attorney Kern informed that court that it was prepared to proceed to trial. Wade informed the court that the defense was not prepared.
State's Attorney Kern strongly objected to the defense's request for a month-long continuance until December 4. He conceded that he would be amenable to what he considered a reasonable length of continuance, suggesting two weeks. After Judge Dunne offered to meet both sides halfway with a three week continuance until November 27, the state acquiesced.
In addition to the granting of a continuance, the brief session also saw the defense give unofficial indication that it intended to argue an defense of insanity. When the two sides were arguing about a potential continuance, State's Attorney Kern had suggested, "I presume Prendergast's defense is insanity; it's either that or nothing," to which Wade interjected with the answer, "It's insanity".
Many who had hoped to catch a glimpse of the hearing had heeded speculation that it was going to be held at the City–County Building in the city's downtown. A large crowd gathered at that building in hopes of catching a glimpse of the defendant. The speculation that the hearing would be held at the City–County Building was fueled by Dunne having days earlier heard other cases in a courtroom at that building. However, the November 6 hearing of the Prendergast trial was instead held in a court room on the city's North Side, leaving the curious crowd of onlookers that had gathered downtown disappointed.

Reassignment of trial to Judge Brentano

After a brief further delay, the trial began on December 6, 1893, being presided over by Judge Theodore Brentano. Brentano presided due to the fact that Dunne had been rotated out of his criminal court assignment. At the time, the Cook County Criminal Court was presided over by judges of the Cook County Superior Court and Cook County Circuit Court, whose duties on the criminal court only lasted one month at a time.
Brentano was 39 years of age during the trial. American-born, he studied abroad in Europe during his high school years, and received his legal education at the National University School of Law in Washington, D.C. He had been elected to the Cook Couny Superior Court in November 1890.

Jury selection

Jury selection began on December 6. It proved challenging, and lasted a week. Due to the high prominence of Harrison's assassination as a news item, the defense feared prospective jurors may hold preconceived judgement of Prendergast. By the time the twelve-member jury was empaneled, 207 prospective jurors had been questioned. This was far more than the fifty prospective jurors that cases at the time typically interviewed before filling a jury. However, there had been fears beforehand that the jury selection could have proven even more severely prolonged. During the process, the defense sought to select jurors that they believed would be more sympathetic to an insanity defense.
On the first day of jury selection, only one slot on the jury was filled. On the second, three were filled, On the third day, two further jurors were selected. By this point the jury was half-selected. However, the initial panel of potential jurors had been exhausted, with all other veniremen having been dismissed. A new pool of veniremen were summoned for the following day. On the fourth day no jurors were selected. On the fifth day, three further jurors were selected, and on the sixth day the jury was fully selected after three more were selected.
During jury selection, Prendergast regularly interrupted. In one such instance on the third day of jury selection, he voiced his disagreement with a juror's answer to Trude's question about whether he held any opinion about Prendergast's guilt or innocence. After the prospective juror had answered "in one way I think he is guilty, and in another I think he is innocent," Prendergast angrily interjected, "I object to that statement, your honor that in some things he thinks I am guilty and in others innocent. I can be innocent without being insane." Trude goaded Prendergast by responding, "what was that last statement of your's Mr. Prendergast? I didn't catch it," with Prendergast nearly taking this bait until his attorney McGoorty stepped in to object to Trude's engagement with Prendergast, objecting to Judge Brentano, "I object to the state interrogating the defendant." Brentano urged Prendergast to cease interrupting and leave his representation to his four lawyers, telling him, "Mr. Prendergast, your attorneys will guard your interests here."
The members of the selected jury were primarily white-collar workers, including six salesmen, a tailor, a fire insurance agent, a business secretary, a commission purchase agent, and the manager of a factory. All jurors were male.
NameOccupationCountry of originOther information
John W. S. AllenSalesman for Cook, Lynn & Co.United StatesOriginally from Michigan
A.T. AltfleischClerk GermanyImmigrated to the U.S. the age of 8
J. M. BlanchardManagerUnited StatesLived in the Austin neighborhood of Chicago
Adolph GrossMerchant tailorGermanyImmigrated to the U.S. at the age of 15
Charles W. HamiltonCommission purchasing agentUnited StatesOriginally from Michigan, had lived in Chicago for 22 years
James H. Van InwegenSecretary of the Tiffany Pressed Brick CompanyUnited States
A. Gordon MurrayDry goods salesmanScotlandHad lived in Cook County, Illinois for 12 years
C.E. ReidTraveling salesmanUnited StatesChicago native
Jacob SutterWholesale tobacco dealer FranceHad lived in Chicago for 18 years
Sedgwick VastineFire insurance agentUnited StatesLived in the Austin neighborhood of Chicago
Alfred WanderSalesmanUnited StatesOriginally from New York, born to parents who were German immigrants
William R. WhiteManager of the Garden City Portland Cement Paving CompanyUnited States

Sutter would be selected as the jury foreman.
Shortly after the verdict was delivered, juror C. F. Reid commented to reporters about his experience serving on the jury,
Shortly after the verdict had been delivered at the end of the trial, Judge Brentano commented on the jury,

Prendergast's conduct during the trial

Despite Prendergast's lawyers' efforts to persuade him against interrupting during the trial, he frequently interjected during the proceedings to voice his disagreement with negative characterizations about him. He regularly interrupted to disagree with his own defense attorney's assertions of his insanity.
News reports voiced doubt on whether his unruly behavior was genuine. Reporters drew comparisons between Prendergast and Charles J. Guiteau, noting that Guiteau had carried himself in similar manner during his own trial for the assassination of President Garfield. News reports frequently speculated that Prendergast might be faking his signs of mental instability, merely "play the crank." Many comparisons had been publicly made between Prendergast and Guiteau after Harrison's assassination, as Guiteau's assassination of Garfield had similarly been motivated by a failure of the president to appoint Guiteau to a patronage position which he perceived himself as being owed. Prendergast personally resented comparisons to Guiteau, viewing Guiteau as beneath him. He made his displeasure with such comparisons well known.
During the jury selection process, when Trude informed potential jurors that the crux of the trial would be the question Prendergast's sanity, and Prendergast expressed agreement with Trude's assertion of the prosecution's view that Prendergast knew "the difference between right and wrong" and was therefore sane and guilty. Trude interjected, "Mr. Trude is right, your honor". This led one of his defense attorneys to scold him aloud, urging him to, "shut up".
During the trial Prendergast also often reacted negatively to mere mentions of his name. For instance, on the second day of the trial he objected to the prosecution referring to him simply as "Prendergast", interrupting the opening remarks by Assistant State's Attorney James Todd saying, "I object to being called 'Prendergast'. Let him call me 'Mr. Prendergast' when he refers to me." In one instance during the trial, Prendergast engaged briefly with Trude in an argument related to the concept of "right and wrong".
Per the Chicago Tribune's reporting, on December 19, Prendergast exhibited nervous twitching. This twitching was noticed by those in the courtroom. However, after a testimony by experts that an individual could feign the appearance of insanity, Prendergast ceased to twitch.
Shortly after the verdict was delivered, the Chicago Tribune quoted a jury member as telling them that Prendergast's interruptions helped to seal his conviction. The Tribune reported the jury member as recollecting, "One of the principal reasons upon which we based our conclusion was Prendergast's statements in court during Mr. Trude's argument," remarking that, "Prendergast's interruption during the argument and language he used showed that his reasoning faculties were acute, his memory good, and that he regarded himself as being in danger." He opined that "the most unfortunate interruption for was when he denied details of how the exchange of fire with Harrison's coachman transpired, commenting, "this showed that he remembered clearly the fact relating to the homicide, which is inconsistent with his being the victim of a delusion."

Prosecution's opening remarks

The prosecution's opening remarks, delivered by Assistant State's Attorney Todd, characterized the assassination as an act similarly horrible to the assassinations of presidents Garfield and Lincoln. Todd noted that Prendergast had already confessed to killing Harrison, and that this had been verified by witness identifications of Prendergast as the perpetrator. Todd further asserted that Prendergast was indeed sane, noting that Prendergast's mother had asserted that he was sane when she spoke to news reporters. He argued that Prendergast had been driven by his own narcissism and delusions of personal importance.

Defense's opening remarks

Next, Wade gave the defense's opening remarks. Due to the fact that Prendergast had obviously committed the killing, Wade employed an insanity defense. In his passionate remarks, he stated that Prendergast's family had a history of insanity, and that Prendergast had been "dull" and "hard of comprehension" since his early years in school, that he had a hyperfixation with morbid political ideas from material he had read which had already driven his relatives to plan for and involuntarily commitment of him. He asserted that his relatives would deliver testimony to support these assertions. He also stated that a new science would demonstrate that analysis of Prendergast's skull, body, feet, teeth and ears gave indicators of insanity.
Wade also stated that he would show that in May, June, and July 1893 Prendergast had written letters to religious leaders and U.S. Senators demonstrating insanity, including proclamations of possessing divine authority, giving unsolicited advice pertaining to the individuals' duties. That among the letters Prendergast had written were letters to every U.S. senator who had taken a stance on the matter of a gold standard versus a silver standard. That Prendergast had demonstrated a delusion that he had been given a divine order to ensure the elevation of the city's railroad tracks. Also that esteemed businesspeople had sought to have him restrained from seeing them due to his dangerous lunacy.
Expressing great confidence that he would succeed in making demonstrating Prendergast's insanity, Wade went as far as to say that if at the end of the jury still disbelieved his insanity after the testimony they would hear, then they indeed should, "hang him".

Prosecution's presentation

After Wade finished the defense's opening statement, the prosecution's arguments began.
The prosecution disagreed with the defense's assertion of insanity, arguing that Prendergast was sane. The prosecutors pointed to the fact that Prendergast had taken special care to keep an empty chamber in his revolver as he carried it around. They argued that this demonstrated rationality because carrying a revolver of that era with a live round under the hammer could cause it to go off if dropped; having the forethought to leave the chamber safely empty demonstrated sanity. Modern revolvers have safety features to prevent such accidental discharges.
In the two days which followed the end of opening remarks, a parade of witnesses for the prosecution were questioned before the court to establish facts. The prosecution relied primarily on laypeople as witnesses, rather than expert witnesses. Thirty non-medical witnesses were called, many of them being individuals casual connections of Prendergast who they brought to illustrate that Prendergast was sane. This included the judge that had presided over the arraignment, despite the fact that Prendergast had only appeared before that judge for less than ten minutes.
The prosecution's first witnesses included several house staff of Harrison's. The first witness to testify was parlor maid Mary Hansen, who had let Prendergast into the residence on the evening of the murder. Her testimony was followed by the testimonies of Helma Johnson, Harrison's cook, and Bartha Reisberg. Also testifying about the circumstances of the night of the assassination was Harrison's son William Preston Harrison.
News reporter Edward P. Stone testified that he had interviewed Prendergast at the Chicago Police Department's Central Station on the night the murder occurred and that Prendergast had divulged details of the murder, including that his motivation for murdering Harrison was both Harrison's failure to appoint him as corporation counsel, as well as his own deeply-held concerns about the need for the city to grade-separate the city's railroad tracks through elevation.
Harrison's daughter Sophie Harrison was called to testify. She was noted to have been highly emotionally overwhelmed while providing testimony about her father's murder. Her emotional state led to the prosecution deciding to cut short their questioning of her. Consequentially, prosecutors opted to keep her testimony short, only asking her questions that established a handful of important facts about the killing. The defense declined to cross examine her. Her testimony was followed by that of Frank A. McDonald, another desk sergeant of the Des Plains police station. McDonald testified that he had overheard Prendergast tell John S. Walsh that he had shot Harrison because believed that Harrison had betrayed his confidence. Walsh testified next, and corroborated McDonald's account.
Next to testify were several of Harrison's neighbors, who recounted the mayor's death. Police and jailers testified to Prendergast's behavior after he surrendered and was jailed. The final witnesses of the prosecution were Dr. Louis G. Mitchell and Dr. Ludvig Hektoen, the two doctors that had conducted Harrison's autopsy. Mitchell testified about his findings. Dr. Hektoen's testimony corroborated Mitchell's. The three bullets that had been extracted from Harrison's corpse were produced. The final action in the prosecution's presentation was entering the bullets into evidence. On December 14 at 2:25pm local time, the prosecution rested.

Defense's presentation

Lay witnesses testimony during defense's presentation

The defense presented many lay witnesses, many were acquaintances of Prendergast that testified to Prendergast's personal history and their belief that he was insane. Such witnesses testified to encounters and interactions that they had had with Prendergast that had informed their belief that he was insane. Witnesses included adult acquaintances, as well as faculty of St. Patrick's Academy.
Corporation Counsel Adolph Kraus testified during the defense's presentation as well.. In his testimony, Kraus recounted that four weeks prior to the assassination Prendergast had come to his office to tell him he should resign the office so that Prendergast could assume it and find a way of compelling the elevation of railroad tracks. Kraus testified to having toyed with Prendergast for his amusement, introducing him to various employees around the Corporation Counsel's office. Testimony corroborating Kraus's account was provided by several employees of the office.

Testimony of Ellen Prendergast (mother of the defendant)

The defense's presentation began on December 14 after the prosecution rested their's. The first witness they called was Prendergast's mother, Ellen Prendergast. They regarded her to be their strongest and most important witness. The purpose of her testimony was to provide evidence that Prendergast was insane. She also established general biographic information about his life, his education, and his employment history. She testified that Prendergast had been a reserved and studious child, but had suffered from a poor memory. Mrs. Prendergast testified that, as a child, Prendergast had also experienced a personality change following his father's death.
She testified that at the age of 16, Prendergast had left home without cause for four weeks, and that not too long after he left school amid his father's poor health to take a job as a courier for Western Union. However, not too long later he had believed himself to be entering a decline in health, and traveled to New Mexico for twelve weeks, upon returning from which he had the appearance of a tramp. She testified that had the age of seventeen, he became more antisocial, and began to demand that he sleep in private rather than share a sleeping quarters with his brother. She also testified that it was around this time had he developed his obsessive fascination with the writings of Henry George. She also testified to his increasing obsession with Henry George's economic philosophies and with religion.
Mrs. Prendergast testified further than roughly a year prior to the trial, she had believed her son was becoming crazy in his obsession with city politics and the matter of elevating railroad tracks above grade. She testified that it was around this time that began expressing his delusional confidence that he would receive an appointment as corporation counsel, and that when she had attempted to reason with him on the matter he became angry and ranted at her before disappearing from her life for the following three months. She testified that he, at some point then, traveled to Wisconsin, only returning in July 1893. She testified that two weeks prior to the assassination, he visited her and asked for her to return to his possession his dumbbells because he wanted to exercise and gain strength in order to provide for his personal defense. She testified that this exchange ended with a tirade in which he mentioned his concern of what he believed to be severe problems in the Catholic Church and told her he had written instructions to all of the priests and to the Archbishop on how to fix. She testified that was the last he had heard from him prior to the assassination.
In cross examination, Trude had Mrs. Prendergast confirm that she had initially commented shortly following the assassination that her son was sane. He also had her confirm that she had never before shared beliefs of her son's insanity prior to the assassination. She admitted that she did not notice that her son had any symptoms of insanity and that nobody had previously told her than they considered his behavior peculiar, with the exception of his more recent obsession with George's single tax theory. Also during the cross-examination, by seeming accident, brought up that Prendergast had been seriously injured as a baby after hitting his head after a fall from a height of four feet, and that this incident had left lasting damage to his eyesight. Trude questioned her further on this, amid which Prendergast lost his temper and shouted, "Trude, you are a scoundrel to talk to my mother that way." A reporter for the Chicago Tribune opined that during the proceedings on December 14, Prendergast had, "exhibited the greatest insolence towards everyone around him, and made running comments on all that occurred."
December 16 began with Mrs. Prendergast being recalled as a witness to provide further testimony. Her additional testimony pertained to hereditary insanity within the Prendergast family. She testified that her son, the defendant, had a paternal grandfather who had suffered periodical bouts of insanity and had been confined to an insane asylum in Ballyclogh, County Cork, Ireland.

Testimony of John Prendergast (brother of defendant)

John Prendergast, the brother of the defendant, provided testimony about his brother's mental condition and behavior. He testified that Prendergast had carried himself dimly until the age of sixteen, at which age he suddenly began exhibiting intelligence, independence, and egotism. He recalled that, after Prendergast turned twenty, he disappeared, becoming a vagrant for some time. He recalled Prendergast showing up on his door step at 3 in the morning in July looking poorly kept, and when asked where he had disappeared to, he answered that he had wound up in Wisconsin without recollection of how he got there, but with the knowledge that he had traveled there on a mission for the good of mankind. The he also testified that prior to his brother returning, he had spoken with attorney Walter Cooley about his belief that his brother was insane, and that he had again concerned worried and unsure about the whereabouts of his brother during a period leading up to the slaying of Mayor Harrison.

Expert witness testimony during the defense's presentation

E. S. Talbot (phrenologist)

The first expert witness called by the defense was Dr. E. S. Talbot, who testified that he had discovered a new phrenology-based method to detect insanity. He displayed a plaster cast he had made of Prendergast's jaw, and shared measurements he had taken of Prendergast's head. It was his view that arrested development in the anterior portion of Prendergast's scull indicated that Prendergast was afflicted with neurotic degeneration and insanity.

Testimony by physicians that had observed Prendergast at the state's behest: Dr. Archibald Church, Dr. D. R. Brower, Dr. John H. Slayer, Dr. F. Kiernan

The prosecution had hired a group of physicians to observe Prendergast's conduct during the trial to assess his mental state. However, most of these physicians ultimately did not to share their opinions. Of the six, only one was willing to testify that Prendergast was sane, and thus that was the only of these physicians which the prosecution had brought as a witness. Four of the medical doctors that the prosecution had hired but decided not to call as witnesses were subpoenaed by the defense, but only three testified for them. The three who did so testified on December 18, and told the court that Prendergast was insane and therefore not responsible for his actions in killing Harrison.
There had been much public surprise at the fact that the four of the eight expert witnesses that the prosecution had originally intended to call had become positioned to testify in support of the defense's case. Publicly, the prosecutors insinuated that these doctors may have been bribed. Judge Brentano allowed for jurors to be kept from knowing that several of the doctors testifying for the defense were doctors that the prosecution originally intended to have as witnesses, so long as the prosecution desired to leave this unknown. Judge Brentano disallowed the defense to tell the jury that the prosecution had previously intended to call the same experts witnesses that would now be testifying in support of the defense's position.
Trude was upset that the doctors who the prosecution had previously compensated were now testifying as defense witnesses. He exclaimed to the court,
The first of these doctors to testify was Archibald Church. Wade asked Church a long hypothetical which took several-minutes to lay out, describing an individual mirror Prendergast and actions mirror those of Prendergast before asking whether Church what his professional opinion would be on such an individual. Church answered that he would consider such an individual insane, and specified that he would consider them to be suffering paranoia. During the prosecution's cross-examined, he testified that he did not believe phrenology to be an entirely reliable means of determining insanity.
Dr. D. R. Brower testified that, having twice conducted in-depth medical examinations of Prendergast, he had concluded that Prendergast indeed was insane. His conclusion was that Prendergast was, in specific, suffering from a paranoia causing him to suffer logical delusions of two types: persecutory delusions and self-exaltation. Brower offered the professional opinion that while Prendergast might be responsible for most of his actions, he was not responsible for actions related to his delusions. Dr. John H. Slayter and Dr. F. Kiernan thereafter testified to the same beliefs and facts that Dr. Brower had. Kiernan had years earlier testified as an expert witness in the murder trial of presidential assassin Charles Guiteau.
The following day, the defense continued their presentation by calling Dr. Richard Dewey as a witness. Dewey had previously served as superintendent of the Kankakee Insane Asylum. Wade posed a long hypothetical of an individual mirroring Prendergast's profile and how Dewey would diagnose an individual base off of that description. Dewey was given a type-written copy of the hypothetical to review, and answered that he would infer that such an individual was insane, specifically suffering paranoia or monomania. During cross examination by Trude, however, Dewey answered that Prendergast's acts and speech, Trude extracted answers that were far less favorable to the defense, and undermined the answers Dewey presented in the defense's questioning about Prendergast evidencing insanity and having lacked the knowledge and ability to refrain from killing Harrison.
The defense posited to the same hypothetical it asked to Dewey to Dr. William Bain and Dr. Frank Wail, both offering similar answers a Bain had given in response to the hypothetical. After this, Dr. Church returned to the stand for further testimony, during which he announced that, when also considering evidence beyond his own previous examination of Prendergast alongside Dr. Brower, he would regard Prendergast to be suffering paranoia. The defense had wanted to question an additional doctor, Dr. Mayer, but he could not be found. They hoped to question him the following day, but his whereabouts were also unable to be found then as well.

Prosecution's rebuttal

Lay witness testimony during prosecution's rebuttal

In their rebuttal, the prosecution again had many laypersons that were acquainted with Prendergast before the killing of Harrison testify to assert their view that Prendergast was sane and culpable of murder. They also had police, jailers, and court officials testify to Prendergast's sanity on the night of the killing and afterwards. Several laypersons were also called as fact witnesses, including Corporation Counsel Counsel Adolph Kraus.

Expert witness testimony during prosecution's rebuttal

In addition to lay witnesses, the prosecution they also had numerous expert witnesses testify to their professional belief that Prendergast was sane.
John C. Spray testified that he had observed Prendergast's behavior throughout the entire trial, and that he believed he was sane and responsible for his actions. Spray also testified about having had the opportunity to freely speak with Prendergast at the Cook County Jail during several visits, the first of which had been two or three days after the assassination. He testified that in their conversations, Prendergast had agreed with the notion that he was "in a pretty bad fix," and had expressed to Spray his belief in his ability to serve as corporation counsel despite lacking law credentials. Spray testified that Prendergast had expressed his belief after being appointed corporation counsel, he could make decisions about litigation in a general supervising manner and have assistants act as attorneys to carry out the specifics of litigation. Dr. Bluthardt testified that, in his analysis of Prendergast's case, he could without hesitation judge Prendergast to be sane.
Dr. Henry M. Lyman similarly opined during the prosecution's questioning of him that he considered Prendergast to be sane. Prosecuting attorney Todd asked Lyman a long hypothetical about an individual mirroring Prendergast and his actions, and whether such an individual would be sane. During cross-examination, defense attorney Wade managed to have Lyman concede that every action described in Todd's hypothetical could also have been performed by an insane individual, and that an insane and irresponsible man acting under the influence of delusions could still carry a false appearance of sanity in many aspects.
Dr. John Benson testified that his examination of Prendergast at the prison and observations of Prendergast in the courtroom left him to believe that Prendergast was sane. Benson testified that Prendergast had told him he killed Harrison because god had ordered him to do so, and that Prendergast also asserted the believe that it would be preferable for the corporation to be a well-educated individual without legal credentials than a lawyer who is not well-educated. Benson also testified that he had asked Prendergast if he would have committed the same act against Harrison again if he hypothetically could found himself in the same scenario, and that Prendergast had answered, "I didn't think that the people would take the affair the way they did. If I had to do it over again, it would be entirely different."
Dr. H. I. Baxter, who had previously visited Prendergast at the jail, opined that the actions he had observed of Prendergast in the courtroom led him to believe without doubt that he was sane. Dr. James K. Egbert testified that having watched Prendergast in the court, he considered him to his actions to be those of a sane individual. Dr. Nathan Davis testified that, having examined Prendergast at the Cook County Jail, he considered Prendergast to be a sane man lacking any fixed hallucination or delusion. He asserted that there was no reason to doubt his self control, and that he was merely a man that had been motivated by his own self-exaltation and conceitedness. Davis also disagreed with the assertion by the defense that examination of the shape of a person's head and jaws could be used to determine whether or not that person is sane.
Dr. Leonard St. John testified that, based upon his visit to Prendergast at the Cook County Jail, he believed that Prendergast to be sane. He also testified that Prendergast had told him he had committed the murder because it was god's will for him to do so, but that he would not do it if given the chance to go back to that night because other people had not responded to the act the way that he had anticipated that they would.
Dr. Charles Gatchel testified that his examination of Prendergast at the Cook County Jail led him to consider Prendergast to be sane. He opined that a nervous and uneasy Prendergast had faked unintelligent behavior when they spoke, with Prendergast having declared to him, "I am interested in religion more than anything else. I am a martyr. I am a martyr." Dr. Silas Yount testified that he had spoken with Prendergast for two hours, and that Prendergast had been quiet and reasonable in their conversation. He further testified that Prendergast had stated his reason for killing Harrison was to ensure the elevation of the city's railroad tracks, and that Prendergast also had told him he had never consumed liquor. Yount opined that there was nothing wrong with Prendergast's head or jaw shape, and that he believed Prendergast to be sane.

Defense's rebuttal

The first witness called for the defense's rebuttal was Robert J. Boylar, a reporter for the City Press Association. He testified that Prendergast's conduct in the courtroom had not changed after the testimony of experts, contrary to that assertion made in the earlier testimony of E. G. Westlake during the prosecution's rebuttal on December 20. Prendergast's brother John Prendergast testified to deny that Edward Normile, contrary to Normile's assertion in his December 21 testimony in the prosecution's rebuttal.
To help illustrate their contention that Prendergast was insane, the defense was permitted to introduce as evidence several letters that Prendergast had written. On December 23, they read notes and letters that Prendergast had addressed to attorney Walter Cooley and others. They read a letter written by Prendergast to his defense attorneys where he wrote,
The defense also read a letter in which Prendergast again asserted to them his declared preference of death to an insanity plea, protested the notion of being sent to the Chester Mental Health Center if found insane, and requested that many Catholic cardinals and similar figures be summoned to testify in his defense. In the letter he also claimed, "owing to a certain nervousness an unfamiliarity with firearms, the death of Mayor Harrison was made to appear much more sad than it should have been. Had I been able to take his life with one shot it would have been much less annoying to me."
The defense also read a December 4 letter by Prendergast to Henry George in which Prendergast had begged George to testify at the trial because, "it would be a bad blow for or glorious clause if anything should befall me." They also read a letter Prendergast had written to Reverend Michael Corrigan. Other letters used by the defense as evidence of Prendergast's insanity included a letter he had sent to U.S. Senator Fred Dubois which rambled about the debate over gold standard versus a silver standard and Prendergast's disapproval of President Grover Cleveland. Dr. Church was recalled for further testimony, initially testifying a belief that these letters demonstrated Prendergast's insanity. During cross examination, however, Trude pointed out that the letters had been initially written in pencil and traced over in ink, and managed to convince Church to concede that this illustrated the sanity-marking behaviors of deliberation and forethought.
The final witness of the defense's rebuttal was John Davin, whose testimony was to illustrate family a history of insanity exhibited by Prendergast's grandfather, William Prendergast. Davin testified that when he was a child in Ireland he had known William Prendergast. He testified that William Prendergast had become insane after losing his arm to gunfire in a military battle, resulting in the elder Prendergast's longtime confinement in a Ballyclogh insane asylum. Davin further testified that he had been scared during encounters with the elder Prendergast due to the level of insanity he had exhibited.
The defense attempted to compel Henry George to testify as a witness, even subpoenaing his testimony. However, George had managed to evade service of the subpoena and the defense rested its case without his testimony.

Closing arguments

First portion of the defense's closing argument

Closing arguments were held on December 29. Speaking first was Wade, who delivered the first portion of the defense's closing argument.

Prosecution's closing argument

Following Wade's portion of the defense's closing argument, the prosecution delivered its closing argument. Todd spoke first. He prefaced his presentation by claiming to the jury that the prosecution had kept its promises made at the start of the trial about what they would prove to them. He also reminded the jurors that they had sworn that they would deliver the death penalty if it was justified by law and evidence. In his remarks, Todd sought to impeach the testimony that had been given by witnesses for the defense, and to discredit other evidence that the defense had presented. Todd characterized the testimonies given by Prendergast's mother and brother as each inconsistent with the other's testimony, exclaiming that, "either the mother or the son has lied."
The prosecution's closing argument finished with remarks by Trude which were described as, "eloquent...at times border on sensational."
Trude urged the jury to find Prendergast guilty and to sentence him to execution. Trude remarked,
Prendergast interrupted with an outburst, declaring,
In the closing argument, Trude characterized Henry George as a "migratory and pestilential maniac."
Trude argued that Prendergast had been proven sane by a preponderance of evidence.

Second portion of the defense's closing argument

After Trude finished the prosecution's closing argument, the final portion of the defense's closing argument was delivered by Heron and McGoorty.

Heron's remarks in closing argument

Heron opened the second portion of the defense's closing argument. A reporter for the Chicago Inter Ocean wrote of the Heron's presentation,

McGoorty's remarks in closing argument

McGoorty was last to speak for the defense in closing argument. His remarks did not focus much on the evidence had been introduced in the case, with the Inter Ocean's reporter noting, "his mission was to talk of the law in the case." McGoorty spoke for an hour before the court took a midday adjournment. When court reassembled, he continued his remarks for an additional hour-and-a-quarter.
The initial portion of McGoorty's remarks was focused on the law applicable to the case, the history of related law, and parallel legal practices in countries from which immigrant members of the jury had originated. The Inter Ocean reporter observed,
The same reporter also observed,
McGoorty sought to make it clear to the jury that an acquittal of Prendergast for murder would not give Prendergast his freedom, insisting that it was likely that an acquitted Prendergast would be thereafter sent to an insane asylum and be effectively confined to such a facility for the remainder of his life.
In his presentation, McGoorty assailed the testimony of Judge Horton. He also assailed qualifications of various medical witnesses that had testified on behalf of the prosecution. In questioning the qualifications of Dr. N. S. Davis, he noted that, by Davis's own testimony, he had not specialized in ailments of the brain. McGoorty argued that, while Davis had earned respect in his own field of medicine, he was not qualified to speak from a position of expertise on the matters about which he testified. McGoorty additionally implied that the other doctors that had testified on behalf of the state had been of incredibly low medical talent.

Jury instructions

After the closing arguments concluded, Judge Brentano delivered the jury instructions. An important excerpt of Brentano's instructions to the jury before they deliberated the verdict was,
Brentano instructed the jury that insanity existed as a legitimate defense. That, if the jury had reasonable belief that Prendergast may have been insane in the manner aforementioned, then he must be acquitted. Brentano instructed,
Brentano made clear that the jury did not need to find Prendergast to have been of perfect sanity at the time of the crime in order to convict. Insanity would provide a successful defense if the jury believed that at the time of the murder he had been insane, and that insanity was the efficient cause of his committing the act. Insanity would also provide a successful defense if the jury believed Prendergast to have committed the crime while acting under a delusion which deprived him of the power of determining the moral difference between right and wrong. However, if the jury merely found him to have been mentally unsound but believed he committed the crime while fully aware that it was wrong, they should instead return a verdict of guilt.
The judge took twenty-five minutes to describing how the jury should consider the charge before excusing the jury to deliberate. During the duration jury instructions, Prendergast was reported to have hid his face under a black handkerchief. He was also reported to have physically reacted to the mention of the word "death" in jury instructions about potential sentencing. by momentarily lowering his hands. He is also reported to have begun nervously twitching after the instructions mentioned the possibility of his being sentenced to a mental penitentiary as an alternative to being sentenced to death.

Verdict and sentencing

Jury deliberation

The jury deliberated for under an hour. It was reported in some news outlets that a court official had shared that a written record of the first ballot taken during the jury's deliberation had shown that the initial minds of the jury had eleven jurors siding with conviction and one having initially sided with an insanity verdict. However, one juror's account to the Chicago Tribune was that only a single ballot was required to reach a unanimous decision.
Shortly after the verdict was delivered, juror C. F. Reid commented to reporters,
The Chicago Tribune quoted a juror as remarking that Prendergast's interruptions of Trude's argument had helped seal the conviction, recalling that, "Prendergast's actions in the court-room were greatly against him." He remarked that Prendergast's interruptions of Trude convinced jurors that Prendergast remembered facts of the assassination in a manner, "inconsistent with his being the victim of a delusion," and that his interruptions also persuaded jurors that, "his reasoning faculties were acute, his memory good, and that he regarded himself as being in danger." The same juror remarked that medical testimony was discussed, and that,
The same juror recalled that J. M. Blanchard was the only juror that demonstrated hesitation in rendering a guilty verdict, recalling Blanchard as having been, "emotional and tender-hearted."

Delivery of the verdict and sentence

After less than an hour of deliberation on December 29, the jury delivered a guilty verdict. Its verdict found Prendergast sufficiently sane to be responsible for the act, and recommended the death penalty, all but ensuring that Prendergast would be sentenced death by hanging. The verdict was read to the court by Court Clerk Fitzgerald.
Prendergast was reported to have reacted with emotion to the verdict, with one newspaper describing him as "break down like the veriest coward and poltroon," further describing that he, "revealed himself an utter coward. His face turned pale, he opened his mouth to speak, but only a faint murmur came. He moved slightly and would have fallen but for the assistance of the bailiff."
Soon after the verdict was delivered, Prendergast was quickly escorted out of the courtroom. However, after defense attorney Wade made the unusual move of requesting for the jury to be polled, Judge Brentano ordered for Prendergast to be brought back into the courtroom. After Prendergast was returned the seat, each jury member was polled and affirmed that the verdict that had been announced was one that they had agreed to. Prendergast was reported to have listened to each juror's affirming of the verdict "with avidity". Prendergast was thereafter again removed from the courtroom, the jury was excused from duty, and the proceedings were called for an end. As would be the typical move, Wade motioned for a new trial. Brentano scheduled for there to be a subsequent hearing on the motion at a later date.
Prendergast was placed in cell 11 at the Cook County Jail after the court adjourned. After returning to his cell, he laid face down on his bunk and refused to speak to others. He opted against giving statements to media that night, after receiving inquiries.

Unsuccessful motions for a new trial and arrest of judgement

After the verdict was rendered, Prendergast's defense attorneys immediately motioned for a new trial, citing errors, "in admitting incompetent and improper evidence," as well as claiming that testimony that was allowed during the arraignment about Prendergast's conduct had amounted to compelling Prendergast to "give evidence against himself," in violation of the Fifth Amendment to the Constitution of the United States. After considering the motion for a new trial, on February 24 Brentano denied it and sentenced Prendergast to executed on March 23, 1894. Brentano similarly overruled a motion for arrest of judgement.

Final sentencing

After the motions failed, Judge Brentano asked Prendergast to stand and asked, "have you anything you anything to say, Mr. Prendergast?" Prendergast proceeded to complain that he had not been given control over his own plea and defense,
After this, Brentano entered the final sentence, declaring,

Reactions of relatives of Harrison

The St. Paul Globe reported of children of Harrison present in the courtroom at the time of the verdict, "the members of the late mayor's family were apparently expecting such a verdict as was given, and seemed to derive but little satisfaction from the fact that the murderer of their father was to die for his crime. After the court adjourned, Harrison's son William Preston was quick to venture over to lead prosecutor Trude and thank him.
Carter Harrison IV, a son of the deceased, remarked,
Annie Howard, the late Harrison's bereaved fiancé, was ill and unable to speak to reporters on the day that the verdict was rendered. Her brother, Frank T. Howard, spoke to a reporter that visited his New Orleans residence, remarking,

Reaction of Prendergast

News reports indicated that Prendergast's initial courtroom reaction to the verdict was emotional, with multiple newspapers characterizing him as having revealed his true cowardice upon hearing the verdict.
In the evening following the delivery verdict, Prendergast declined to give comment, asking not to be bothered after receiving a written correspondence informing him that the Associated Press would be interested in reporting any comment he would care to offer. This was to be his final evening in cell 11, his home for the previous months, as he was set to be moved to a new cell in the jail's death row the following day. As a precaution, that evening the prison placed Prendergast on suicide watch. His brother visited his cell, and his lawyers called him to offer encouragement as well.
On December 30, the morning after the verdict, Prendergast expressed strong confident that he would be granted a retrial, which would end in an acquittal.

Reactions of relatives of Prendergast

Shorlty after the verdict Prendergast's brother, John Prendergast, remarked of the verdict, Beyond this, he refused to offer any further comment to reporters the day the result was delivered. The following day, he told reporters that he believed that the defense counsel had made a critical error by declining an plea offer from the state that would have resulted in a sentence of life imprisonment for Prendergast.
Prendergast’s mother had not attended the trial during the session in which the verdict was delivered. However, reports vary as to whether she was present at the courthouse and learned of it there, or whether she awaited the verdict at home and received belated word there. Reporting to the prior claim recounts her being present at the courthouse, but wandering in the corridors outside of the courtroom instead of being present inside. Such reports claim that when news of the verdict spread outside of the courtroom, she was spotted "totter away, clanging to the bannister for support as she descended the stars, and struggled through the excited crowd thronging the approach to the court room." Other reports were that she had been busying herself at her house with chores, and that she did not learn of the verdict until 4:30 pm local time when a Chicago Tribune reporter came to her residence to seek a quote and informed her and her brother-in-law of the verdict. The Chicago Tribune reporter quoted her brother-in-law as responding to the verdict by remarking, "that is perfectly right," in what the was described as a, "satisfied air, while Mrs. Prendergast bore physical expression of emotional devastation about the verdict. Her brother-in-law was also asked by the reporter if there were funds to continue Prendergast's defense further, and differing from John Prendergast in his answer he replied, "no, there is not a cent."

Reactions of the prosecuting attorneys

Reaction of A. S. Trude (lead prosecutor)

After the verdict was delivered, lead prosecutor A. S. Trude told reporters that be believed the verdict to be, "a just one, in keeping with the law and evidence."
Trude told reporters,
Trude further remarked,
Trude also told reporters that while he felt "sorry" for Prendergast's mother,

Reactions of the other prosecutors

Cook County State Attorney Kern commented to reporters after the verdict was delivered, "I believe the verdict fair and just and rendered from the evidence and the law. It is justice to Prendergast and to the community." Kern expressed his belief that the verdict sent an important warning to so-called "cranks", remarking,

Reactions of the defense attorneys

Wade's reaction

After the court adjourned, Wade spoke to reporters. Wade was described by the Chicago Tribune as being "so indignant over the verdict that he hardly had words to express his feelings. He had looked for a life imprisonment verdict at the most, and was not prepared for the death Pentaly. Wade remarked, "I will bank my life that this boy will never hang. We have made a motion for a new trial that will be heard in a few weeks. Should that fail, we shall carry the case to the Supreme Court. Wade stated that in their forthcoming motion for a new trial, the defense intended to allege that A. Gordon Murray had given false testimony in juror selection when he denied having been close friends of the late Harrison. They would also object to aspects of Brentano's jury instructions. They would also argue that Doctors Church, Moyer, Dewey, and Brower as well as nine physicians brought by the state and three physicians brought by the defense had in fact given testimony that in effect pronounced Prendergast insane.
In his denouncement of the verdict, Wade criticized the jury as biased and questioned their motives, commenting,
Shortly after the verdict, Wade told reporters that he had received telegrams from lawyers across the country encouraging him to continue to represent Prendergast and appeal his verdict. He expressed the view that $25,000 could potentially be raised from fellow lawyers alone to fund appeals.

Heron's reaction

Heron wrote to a legal magazine,

McGoorty's reaction

McGoorty wrote,

Reaction of Judge Brentano

After the verdict, Brentano praised the jury as having been, "the most intelligent jury that I ever saw." However, he refused to provide comment on the trial itself, telling reporters, "I think it would be improper....the whole case may come up before me for review on a motion for a new trial, and therefore I cannot speak about it until I give judgement." Brentano did remark that the trial had been exceptionally taxing on him, remarking, "I am completely worn out, as I never was by any other murder trial."

Reactions of trial witnesses

After the verdict was delivered, Dr. D. R. Brower, who had testified for the defense that Prendergast was insane, told an Associated Press reporter,

Public reaction to the verdict

Public reactions were predominantly supportive of the trial's outcome. The popular view was that his execution would serve as an example to deter other "cranks" from carrying out similar acts of violence against government officials.
Incidentally, towards the end of the trial another so-called "crank" had attempted to use a revolver to assassinate a mayor of a large American city. On December 26, an aggrieved man named had walked into the office of Henry S. Tyler and attempted to assasinate him, only to be disarmed by Tyler.

Politicians

The verdict immediately attracted comment from politicians.
Vice President Adlai Stevenson I remarked,
Former president Benjamin Harrison was asked on the day the verdict was rendered by an Associated Press reporter if he had seen the verdict. The former president said that he had "glanced at it" but had not carefully read it, and that he did not "care to talk about the subject" because he had "not followed the trial closely" and was "not prepared to give an opinion." The former president further remarked, "It was a murder trial and my views are probably the same as many other persons."
U.S. Congressman J. Frank Aldrich of Illinois commented,
U.S. Congressman John C. Black of Illinois remarked,
U.S. Congressman Edward Lane of Illinois opined, "the verdict expressed my sentiments. I endorse it fully. There is not question as to Prendergast's guilt."
Some political figures that were asked for comment declined. Illinois Governor John Peter Altgeld declined to provide substantive comment, saying, "I know nothing about this case except what I have read in the newspapers, and, therefore, I cannot give any opinion in regard to the verdict." Walter Q. Gresham remarked that he had not been closely following reports of the trial, and therefore also declined to comment. Melville Fuller also declined to comment, as there was a chance the matter could come before the court on appeal and he wanted to avoid prejudging the matter.

Other notable figures

Prominent New York City railroad businessman and attorney Chauncey Depew remarked,
Prominent railroad financier Russell Sage showed some surprise when informed of the verdict, but remarked,
Dr. Selden H. Talcott, who had previously given expert medical testimony in Guiteau's trial for the assassination of President Garfield, said that he believed that Prendergast had mental defencts, but that also the laws should not be written in a manner that would exempt him from criminal penalty. He remarked, "I think Prendergast was a crank. His mind was unbalanced; but I think he should be held responsible for his crime. The laws should be so amended as to cover cases of this kind."

Newspapers

Across the United States, newspaper reports and editorials hailed the verdict, greeting it with a fascination and excitement that was typical of how they contemporarily covered death sentences. The San Francisco Call and Post characterized the broad view of the press as holding the conviction to be "a vindication of the law" which would have a beneficial societal impact by deterring would-be cranks. As the date set for his execution subsequently grew nearer, newspapers would continue to express positive anticipation of it.
The Chicago Times opined,
The Chicago Inter Ocean opined,
The St. Paul Globe praised the verdict as "just and true", and opined that it had delivered a "just rebuke" to "crankism". The publication's editorial also asserted the belief that "Guiteau immatators will retire from business for a time" a result of the verdict. It further opined that the "people of Chicago approve ," further writing,,
The New York World opined in its editorial column,
The New Yorker Staats-Zeitung commented,
The New Orleans Picayune wrote approvingly of the verdict, opining that the testimony in the trial had convinced them that Prendergast was sane enough to know what he was doing, making the murder deliberate and worthy of punishment. While the newspaper believed him to be a fanatic, they did not believe he was insane to the point that he could be relieved of responsibility.
The New Orleans Times-Democrat wrote,
The North American opined,
The Philadelphia Inquirer opined,
The Philadelphia Press opined,
The Los Angeles Times editorialized in praise of the verdict,

Contemporary legal publications

In a journal article published in The American Law Register and Review, H. M. Bannister cast doubt on the psychiatrical knowledge of several of the prosecution's expert witnesses.
The Law Students Helper opined, " rulings in the Prendergast trial show him to be a firm, intelligent, and impartial judge."

Contemporary medical publications

An editorial in the July 1894 edition of The Journal of the American Medical Association expressed agreement with the outcome of the trial. It called into question the expertise of many of the expert witnesses both the prosecution and defense had called to the stand, and also opined that the insanity plea had been, "set forth with great ability by the counsel for ". The editorial observed that public reception to both the initial trial and subsequent insanity hearing indicated the public's desire for "speedy justice by the application of the lex talionis ." It further opined,
The question of Prendergast's sanity was the subject of the twenty-first chapter of Edward C. Mann's 1893 book A Treatise On the Medical Jurisprudence of Insanity, which was published shortly before the trial. The book also contained chapters similarly exploring the sanity of murderers Charles Guiteau, Edward Newton Rowell, and Lucille Yesult Dudley as case studies. While Mann's book offered a confident assessment that Guiteau had been insane, its chapter on Prendergast did not offer a clear conclusion about Prendergast's sanity, only cautioning that,
In 1895, a journal study of Prendergast was published in Transactions of the Medical Society of the State of New York. Contrary to the jury verdicts, the author concluded that Prendergast had been insane. The study gave significant focus to aspects Prendergast's physical appearance in reaching that conclusion.

Appeals efforts

Change in Prendergast's legal representation and the Illinois Supreme Court's refusal to intervene

By some time in May, Wade had departed from Prengergast's defense and Clarence Darrow had become Prendergast's primary counsel. Darrow had months earlier left his position as the city's assistant corporation counsel. This was his first murder case, and marked the start of a storied criminal law career for him. Joining Darrow in his representation of Prendergast was James S. Harlan and Stephen S. Gregory. Trude continued as the case's prosecutor. Darrow was among Chicago's most boisterous opponents of capital punishment but had never before represented a defendant in a murder case.
On March 21, an application was filed writ of habeas corpus was sent to Judge James Graham Jenkins and Justice John Marshall Harlan
On March 22, the eve of the scheduled execution date, the Illinois Supreme Court delivered their refusal to a request that had been made immediately after the trial on Prendergast's behalf that they intervene.

Sanity proceeding

Also on March 22, Prendergast's brother filed a petition on Prendergast's behalf citing Illinois' section 285 of the Illinois Criminal Code, which barred the trial or execution of individuals who become "lunatic or insane" after the commission of a crime for as long as the remain in such a mental state. If he were to be deemed insane, this would forbid Prendergast's death sentence from being carried out until such a point that he would be deemed sane. The statute required a sanity hearing to take place if it appeared that the condemned may have become insane since the verdict sentencing them to death had been delivered.
Late on the night of March 22, while sitting in the Cook County Criminal, Judge Arthur H. Chetlain ordered a two-week reprieve to Prendergast; issuing a de lunatico inquirendo writ which ordered an inquiry to be held so that a jury could judge whether or not Prendergast was currently insane. If he were currently insane, it would make him ineligible to be executed by the state until such a time that he were rendered sane. This move by Chetlain was highly unexpected, and he faced tremendous backlash for issuing this reprieve. He was accused of philandering and having exceeded his judicial authority. In response to backlash he received, Chetlain recused himself from presiding further over the matter, and the case was transferred to Judge John Barton Payne.
Following many delays, the sanity proceeding began on June 20, 1894. Despite objections by the defense, Trude was allowed to continue representing the state against Prendergast. The proceedings received renewed public interest after French president Sadi Carnot was assassinated on June 24. Many had already been concerned after Harrison's assasination that it was part of a perceived trend of violent crimes being committed against officials, with other examples in the previous several years including the assassination of President Garfield and the assassination of Russian Tsar Alexander II.
Richard Allen Morton has written of the proceeding,

Late attempts to forestall Prendergast's execution

Darrow and Harlan attempted to persuade Governor Altgeld to issue a pardon. Darrow had previously been law partners with Altgeld, and the previous year had succeeded in persuading him to pardon some of those who had been convicted for the Haymarket Affair. However, Altgeld had suffering great damage to his public approval due to those pardons, and was not persuaded by Darrow and Harlan to bring harm his political standing further by pardoning Prendergast, particularly given that the violent disorder of the then-ongoing Pullman Strike had created an appetite among Chicagoans to see harsh punishment for crime.
A request was made July 12, 1894 to federal judge Peter S. Grosscup for a writ of habeas corpus and a request for a stay of execution. in order to permit an appeal to be made to the Supreme Court of the United States under a claim that Prendergast's rights under the Due Process Clause in the Fourteenth Amendment had been denied, pointing to Judge Horton having presented an opinion of his own concerning Prendergast's sanity during the trial and allowed certain evidence regarding the facts of the murder. The request also falsely claimed that Prendergast had not been permitted to speak on his own behalf. In the hearing before Grosscup, strong arguments were made by Prendergast's lawyer. With hours left before Prendergast’s scheduled execution, Grosscup refused to stop the execution in a detailed opinion. Grosscup opined that the Fourteenth Amendment was not applicable to "any particular trial but to the action of the Legislature and state polity."

Execution

Prendergast was hanged on July 13, 1894 in a gallows that had been constructed in the north corridor of the county jail. About 500 ticketed witnesses assembled to watch the execution, which included the members of the jury who had convicted Prendergast.
When he got to the top of the platform, Prendergast briefly raised his hands, recognizing the crowd that gathered to view his execution. Prendergast walked to the edge of the trap without assistance, where his hands were fastened. Although having previously planned to make a last statement to the crowd, he had been dissuaded by Father Berry, to whom he quietly delivered his last words, "I had no malice against anyone." A signal was given and at 11:48 the rope holding the heavy trap in place was cut. Prendergast's neck was broken by the six-foot drop and his body did not move after the fall. His heart was measured to have stopped within twelve some minutes. Five minutes after that, his body was taken down and placed in an awaiting coffin for burial.

Retrospective views on the question of Prendergast's sanity

More modern retrospective writings about the trial often contend that the defense indeed was correct in its assertions of Prendergast's insanity, and that the juries he faced were wrong to find him sane. Numerous authors have faulted political factors, such anti-"crank" sentiment and a desire to make an example out of Prendergast, as playing a key role in his conviction and execution.
Clarence Darrow reflected in his 1905 autobiography The Story of My Life,
In October 1956, Tappan Gregory delivered a lecture at the University of Chicago about the life of his father Stephen S. Gregory. He opined that jurors had been subject to influence by the crowds surrounding the courthouse,
A 2002 journal article by Edward M. Burke that was published in the Journal of Criminal Law & Criminology noted that the prosecution's expert witnesses ignored key aspects of Prendergast's biography that had been outlined by lay witnesses for the defense,