TWIN FALLS, Idaho -- The suspect in a fatal shooting at a fast-food restaurant in Idaho died of a self-inflicted gunshot wound, police said Sunday, crediting an off-duty officer and a citizen with firing shots that diverted him. In all, four people died, including Williams, and seven others were injured at the recently opened restaurant in the southern Idaho city of about 56,000 people. The FBI on Sunday encouraged the public to submit images and videos related to the shooting Saturday in Twin Falls that left seven other people wounded, some critically. Officials were still trying to notify relatives of victims and so were not yet releasing the names, ages or other details about the people hurt in the shooting, Twin Falls spokesperson Josh Palmer said Saturday. Police who responded to the shooting found the body of the suspected gunman in an area near the restaurant, Palmer said.