 Despite three trials in two years, prosecutors were unable to convince a jury of that Larry Davis was guilty for any but the weapons charge—the ones he used in shooting the police officers—until a jury convicted him and his brother, Eddie Davis, in the August 1986 killing of a drug dealer.The four killings occurred in October 1986.The prosecution, contending that Davis was a crack dealer who specialized in the armed robbery of rival crack dealers, called over 50 witnesses, encompassing ballistic evidence and fingerprints on a cash box placing Davis at the crime scene.