Mule Creek State Prison


Mule Creek State Prison is a California State Prison for men. It was opened in June 1987, and covers located in Ione, California. The prison has a staff of 1,242 and an annual operating budget of $157 million.
As of July 31, 2022, MCSP was incarcerating people at 115.2% of its design capacity, with 3,785 occupants.

SNY facility

In 2005, MCSP became the only California state prison exclusively for Sensitive Needs Yards inmates. SNY inmates are segregated from the general prison population for their own safety. Many are gang dropouts, informants, sex offenders, and former law enforcement officers.

2024 conjugal visit incident

In July 2024, Tania Thomas, a 47-year-old woman, was killed by her husband, Anthony Curry. In November 2024, Stephanie Diane Brinson was killed by her husband, David Brinson. Officials announced that conjugal visits were suspended. Curry's representatives have said that they will appeal. An independent investigation is ongoing as of March 2025, and no charges have been filed pending the results of the independent investigation.

Notable inmates

Current notable inmates

Inmate NameRegister NumberStatusDetails
Michael CarsonC88665Serving a 75-to-life sentence; has been eligible for parole, which has been rejected.Serial killer who, along with his wife, Susan Barnes Carson, murdered three people between 1981–1983.
Billy Lee ChaddC05801Serving three life sentences.Murdered three people between 1974–1978.
Steven CarrilloBU0189Serving a 41-year to life sentence.Main perpetrator of the 2020 boogaloo murders in which he killed security guard David Patrick Underwood at the Ronald V. Dellums Federal Building on May 29, and then killed sergeant Damon Gutzwiller on June 6.
Charley CharlesV79696Serving a life sentence.Attempted murder of his son David in 1983 by trying to burn him alive.
John Albert Gardner IIIAD5185Serving a life sentence without parole.Perpetrator of the rape and murders of 14-year-old Amber Dubois and 17-year-old Chelsea King.
Luis Reynaldo "Tree Frog" JohnsonC79631Serving a 527-year sentence.Sexually abused a 3-year-old girl and 11-year-old boy.
Patrick KearneyB88913Serving 21 life sentences.Serial killer who murdered at least 21 people from 1962–1977.
Scott PetersonV72100Serving a life sentence.Convicted in the murder of his wife, Laci Peterson, and her unborn child.
Robert RozierP99863Serving a life sentence.Currently serving time for check fraud. Had been originally sentenced to 22 years for murder as part of a deal with the court to build a case against the Nation of Yahweh.
Rollen StewartH87708Serving three life sentences.Originally a well-known sports attendee, who always showed up with a colorful wig, was later convicted on kidnapping charges.
Scott Avery FizzellP42992Serving 31 years.
Anthony WimberlyE76231Serving three life sentences.Murdered three people in 1984.

Former notable inmates