He's returning to the truck in the middle of the night to give the guy water and had just found out he'd been shot in the head (meaning someone else had been th

He's returning to the truck in the middle of the night to give the guy water and had just found out he'd been shot in the head (meaning someone else had been there). This is where he turns around to see someone standing next to his truck he parked up the hill and is coming to the realization that things are about to get really bad.