Sheriff Norris said the homeless suspect had attacked fire crews after they asked him to move his vehicle, which he had been living in. "There was an interaction with the firefighters," Norris said. "It has something to do with his vehicle being parked where it was." ... Norris said authorities believed the suspect used a high-powered rifle to fire rapidly at first responders, with officers initially unsure of the number of assailants involved. A shotgun has been recovered, and several bullets or fragments possibly from a rifle have been found. Officials say more guns may be hidden on the mountain....