The gunman, who police believe shot himself, was dead when officers arrived. Police said they were trying to determine the motive for the shooting, and one employee described watching “bodies drop” as the assailant fired haphazardly, without saying a word. “He was just shooting all throughout the room. It didn’t matter who he hit. He didn’t say anything. He didn’t look at anybody in any specific type of way," said Briana Tyler, a Walmart employee.