>> in talking to him, the whole time, i basically got my pistol out and it's pointed at him. he opened the breach of the rifle, the shotgun, i thought he was going to disarm it. i thought he was just going to give up and put it down. what he was doing is he was looking to make sure it was loaded. >> police backup arrives and quickly gets into position. they wait for hill to make a move. >> come on, man! >> i saw that he had taken a defensive posture. he was laid across the trunk of a vehicle pointing his firearm toward sergeant kellerman so i knew that as soon as i pulled in and i looked over, i had a good shot. >> put the gun down! >> when you get on the scene like that and you make a decision that deadly force will have to be used, which i did pretty quickly especially after he checked the weapon and put it back, i knew there was going to be a shooting. >> the gunman fires a single shot striking sergeant kellerman in the face. >> i was still trying to