Police ID Chad Williams As In - N - Out Shooter Who Killed 2 , Wounded 7 ; Armed Citizen , Off - Duty Trooper Helped Prevent More Casualties

Police have identified Chad Williams as the gunman who killed two people and wounded seven others in a shooting at an In-N-Out restaurant. The suspect died at the scene from a self-inflicted gunshot wound.

According to the police chief, the intervention of an armed citizen and an off-duty state trooper was critical in preventing further casualties during the incident.