Duane “Keffe D” Davis, 63, faces a single count of murder with a deadly weapon with the intent to promote, further or assist a criminal gang in Shakur’s death. (Mopreme Shakur via AP)The trial, which is expected to last about a month, likely won’t reveal who pulled the trigger. The rival gangs fought and retaliated against each other both before and after Shakur’s death. When they encountered Shakur and Knight, Davis claimed to see Shakur reach for a weapon and wrote that “one of my guys from the back seat grabbed the Glock and started bustin’ back.” In his book, Davis claims that Combs wanted Knight and Shakur killed.