While on leave to visit his five children, Ray was pulled over by the police and dragged out of his car at gunpoint. As he lay face down on the pavement, they told him he was under arrest — for the murder of a girl he’d never met. Ray had been in the parking lot that night. While studying to be a U.S. Marshal, he was moonlighting as an unarmed security guard. It was his second day on the job. He heard gunshots, took cover, and radioed for help. When police arrived, they didn’t treat Ray as a suspect. If...