The San Quentin Six were a group of six prisoners at San Quentin Prison in 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. The subsequent 16-month trial was the longest in the state's history at the time. Of the six defendants, one was convicted of murder, two were convicted of assault on prison guards, and three were acquitted of all charges. Hugo Pinell remains in prison.