19-year-old Arnold Sanchez turned himself in at the city's police department late last night. Investigators say Sanchez assaulted Salvador Garcia before he was shot and killed on February 3, 2013.
Police had already arrested Federico Mejia and his girlfriend, Adriana Jaimez for the homicide. Detectives say the victim was parked in his car waiting for a friend at this mini mart when Mejia walked up and shot him in the chest. They say Jaimez then drove Mejia and Sanchez away from the scene.
Police believe the victim was not involved in gangs, and that the shooting may have been random.
