 The surreal footage echoes what several witnesses told reporters after the shooting. Some rally attendees were aware of Crook's presence well before he fired. One local cop from the Butler Township Police did manage to get hoisted onto the roof, came face to face with the gunman who pointed his rifle at the officer. The Butler County Sheriff defended his failure to stop Crook, saying the cop was still pulling himself up and had to let go when faced with the weapon.