In August 1971 Stephen Bingham, a Yale-educated attorney with left-wing sympathies, paid a visit to San Quentin Prison Inmate George Jackson, a Black Panther leader and author. After the meeting, Jackson pulled out a 9-mm pistol, sparking a melee that left six dead, himself included. Police postulated that Bingham had smuggled the gun and two ammo clips to his client. Bingham, who was then 29, went into hiding; after 13 years, he returned to California in 1984 to face conspiracy and murder charges.
During a ten-week trial, Marin County prosecutors argued that Bingham's flight was proof of his guilt. Defense attorneys...