The attack Saturday at a new In-N-Out Burger in Twin Falls ended when the gunman, identified by police as 24-year-old Chad Williams, shot and killed himself. Twin Falls spokesperson Josh Palmer said Monday that police were still trying to identify next of kin. A vigil is planned for Tuesday evening at Twin Falls City Park, Palmer said. Marcus Scott said in a message to the AP on Monday that his son used to work as a law enforcement officer for the Twin Falls police and the Idaho State Police. Terry Dudley, a driver for North Star Taxi, was shot as he was charging one of the company's Teslas in a parking lot next to the In-N-Out Burger, said James Palmer, who owns the taxi service and is Dudley's friend.