Some sources state the Grey Wolves are responsible for his death, however another source states the Turkish Revenge Brigade is responsible. San Quentin Six  The San Quentin Six were six inmates at San Quentin State Prison in the U.S. state of California (Hugo Pinell, Willie Tate, Johnny Larry Spain, David Johnson, Fleeta Drumgo and Luis Talamantez), who were accused of participating in an August 21, 1971 escape attempt that left six people dead, including George Jackson, a co-founder of the Black Guerrilla Family. Costing more than $2 million, their 16-month trial was the longest in the state's history at the time and was dubbed "The Longest Trial" by "Time" magazine. Of the six defendants, one was convicted of murder, two were convicted of assault on correctional officers, and three were acquitted of all charges. During the escape, which sparked a riot on the cellblock, Jackson had a .32 caliber pistol allegedly smuggled into the prison by attorney Stephen Bingham. Immediately after the incident, Bingham went on the run and fled the country for 13 years; he returned in 1984 to stand trial, and was acquitted of all charges in 1986. Bingham's defense had argued that guards had smuggled George Jackson the gun, hoping that he would be killed. During the ensuing riot, George Jackson, three corrections officers, and two inmates were killed. In addition to Jackson, those killed in the altercation were guards Paul E. Krasenes, 52, Frank DeLeon, 44, and Jere P. Graham, 39, as well as inmates John Lynn, 29, and Ronald L. Kane, 28. Spain was found guilty in the shooting deaths of guards DeLeon and Graham, Pinell was convicted of cutting the throats of guards Charles Breckenridge and Urbano Rubiaco, Jr. (died 2013), both of whom survived, and Johnson was convicted of assaulting Breckenridge. There were no convictions for the killings of Krasenes, Lynn, or Kane. Drumgo, Talamantaz, and Tate were found not guilty of all charges, including various counts of murder, conspiracy, and assault. The details about what really happened that day are still contradicted to this day, but Adjustment Center inmate Johnny Spain recalled saying the one true fact about this day was that "There was a gun introduced into the Adjustment Center on August 21." The state first claimed that officials that attorney Stephen Bingham and a female assistant arrived at San Quentin for a meeting with George Jackson at around 2:00 pm.