Billy Brooks Jr., 39, was found on the 2400 block of Ritchie Street in his Chevrolet Malibu on Oct. 7. He had been shot.
Kenyus Walker, 33, of Oakland killed Brooks several days earlier during an argument at a home on 80th Avenue
Brooks was found after neighbors reported a strong odor coming from the abandoned car. His body, wrapped in cloth, was in the back seat.
Walker was arrested Tuesday and has been charged with murder, authorities said. He is being held without bail at Santa Rita Jail in Dublin.
Anthony Allen, 49, Karnell Marshall, 41, and Tameka Tolliver, 38, all of Oakland, have been charged with being accessories in the slaying.