The earliest documented act committed by the Black Mafia was the April 19, 1969 murder of one of the group's founders, Nathaniel "Rock and Roll" Williams. Williams arranged a crap game above a barbershop at Broad (14th) and South street. As usual, several Black Mafia leaders participated in the game. Curiously, Williams was absent from his own crap game. Thus, when two gunmen busted into the room and robbed the pot and the players, suspicions arose.The Black Mafia leadership almost immediately heard in the street what they already suspected, that Williams had engineered the stick-up, using neighborhood gang members, and that Williams had driven the getaway car himself. An hour and a half after the robbery, witnesses saw two men marching Williams out of a bar at 15th and South street at gunpoint. Williams' corpse was found in an isolated area near the Naval Base in South Philadelphia. Four bullets had been fired into his back. Police would later characterize the homicide as a "Black Mafia execution." Jerome Barnes was arrested for Williams murder on August 12, 1969. In a trend that would be repeated numerous times throughout the Black Mafia's tenure, charges against Barnes were dropped when police were unable to line up witnesses who could identify him.