Pedro Alcázar
Guillermo Gonzalez, better known as Pedro "El Rockero" Alcázar was a Panamanian boxer who won the WBO Super flyweight championship, and then sustained fatal injuries in the ring.
Professional career
Alcázar turned professional in 1995 & compiled a record of 22–0–1 before beating Adonis Rivas, to win the WBO super-flyweight title. He lost his title to Fernando Montiel in Las Vegas, Nevada on 22 June 2002, in what would turn out to be his final bout.Professional boxing record
| No. | Result | Record | Opponent | Type | Round, time | Date | Location | Notes |
| 28 | Loss | 25–1–1 | Fernando Montiel | TKO | 6 | 2002-06-22 | MGM Grand Garden Arena, Paradise, Nevada, U.S. | Lost WBO super-flyweight title; Alcazar passes away two days later |
| 27 | Win | 25–0–1 | Alfredo Toro | TKO | 4 | 2002-04-19 | Arena Panama Al Brown, Colón, Panama | |
| 26 | Win | 24–0–1 | Jorge Otero | UD | 12 | 2001-10-05 | Gimnasio Nuevo Panama, Panama City, Panama | Retained WBO super-flyweight title |
| 25 | Win | 23–0–1 | Adonis Rivas | SD | 12 | 2001-06-16 | Gimnasio Nuevo Panama, Panama City, Panama | Won WBO super-flyweight title |
| 24 | Win | 22–0–1 | Alex Saavedra | KO | 4 | 2001-04-27 | Salón Magnum Eventus, Panama City, Panama | |
| 23 | Win | 21–0–1 | Sergio Pérez | UD | 12 | 2001-02-03 | Gimnasio Nuevo Panama, Panama City, Panama | Won vacant WBO Latino super-flyweight title |
| 22 | Win | 20–0–1 | Jose Morales | KO | 3 | 2000-10-28 | Gimnasio Yuyin Luzcando, Panama City, Panama | |
| 21 | Draw | 19–0–1 | Ramon Estrada | PTS | 10 | 2000-08-31 | Hotel Melia Cariari, San Antonio, Costa Rica | |
| 20 | Win | 19–0 | Cristian Morales | TKO | 8 | 2000-06-03 | Hotel Melia Cariari, San Antonio, Costa Rica | |
| 19 | Win | 18–0 | Marcos Sanchez | MD | 12 | 1999-11-17 | Hotel El Panamá, Panama City, Panama | Won vacant WBA Fedelatin super-flyweight title |
| 18 | Win | 17–0 | Wilmer Jinete | UD | 10 | 1999-09-04 | Balboa Civic Center, Panama City, Panama | |
| 17 | Win | 16–0 | Jose Plinio Gonzalez | TKO | 3 | 1999-01-30 | Arena Panama Al Brown, Colón, Panama | |
| 16 | Win | 15–0 | Alex Saavedra | TKO | 10 | 1998-05-16 | Arena Panama Al Brown, Colón, Panama | Won vacant WBO Inter-Continental super-flyweight title |
| 15 | Win | 14–0 | Leon Salazar | TKO | 7 | 1998-01-31 | Gimnasio Nuevo Panama, Panama City, Panama | |
| 14 | NC | 13–0 | Edgar Monserrat | NC | 10 | 1997-11-15 | Gimnasio Nuevo Panama, Panama City, Panama | Originally a MD win for Monserrat; later ruled an NC after he failed a drug test |
| 13 | Win | 13–0 | Danilo Arciria | UD | 8 | 1997-10-04 | Gimnasio Chino-Panameno, Panama City, Panama | |
| 12 | Win | 12–0 | Virgilio Chifundo | UD | 10 | 1997-06-14 | Gimnasio Nuevo Panama, Panama City, Panama | |
| 11 | Win | 11–0 | Benedicto Murillo | UD | 10 | 1996-10-11 | Hipodromo Presidente Remon, Panama City, Panama | |
| 10 | Win | 10–0 | Rodolfo Agrazal | KO | 1 | 1996-08-31 | Gimnasio Nuevo Panama, Panama City, Panama | |
| 9 | Win | 9–0 | Garibaldo Morris | TKO | 1 | 1996-08-24 | Hipodromo Presidente Remon, Panama City, Panama | |
| 8 | Win | 8–0 | Antonio Jaramillo | UD | 6 | 1996-06-15 | Gimnasio Nuevo Panama, Panama City, Panama | |
| 7 | Win | 7–0 | Anel Mitre | KO | 2 | 1996-06-01 | Gimnasio Nuevo Panama, Panama City, Panama | |
| 6 | Win | 6–0 | Jorge Caicedo | UD | 6 | 1996-05-03 | Hipodromo Presidente Remon, Panama City, Panama | |
| 5 | Win | 5–0 | Eric Aguilar | TKO | 3 | 1996-04-17 | Discoteca Dreams, Panama City, Panama | |
| 4 | Win | 4–0 | Mauricio Santizo | TKO | 2 | 1996-02-23 | Hipodromo Presidente Remon, Panama City, Panama | |
| 3 | Win | 3–0 | Agustin Ortega | UD | 4 | 1996-02-02 | Arena Panama Al Brown, Colón, Panama | |
| 2 | Win | 2–0 | Manuel Ortega | TKO | 3 | 1995-10-14 | Panama City, Panama | |
| 1 | Win | 1–0 | Eric Jimenez | TKO | 2 | 1995-09-30 | Gimnasio Kiwanis, Panama City, Panama |
Death
Immediately following the bout with Montiel, Alcazar was declared healthy by ringside doctors, with no visible signs of any trauma. He went sightseeing the day after the fight and was in his hotel room getting ready to fly back to Panama when he collapsed. He was taken to hospital, where he died.This was the first time in boxing history that a boxer is known to have collapsed so long after the end of a fight. The boxing authorities have discussed compulsory medical testing for boxers up to 48 hours after a fight finishes, longer than heretofore. There was already concern following the Michael Watson case, which in the United Kingdom established the principle that the authorities have a wide responsibility for the health and safety of boxers. Alcazar's death highlighted the manner in which it can take an extended time before potentially life-threatening symptoms present themselves.
He was a protégé of the legendary Hall of Famer Roberto Durán, who was a pallbearer at his funeral.