I agree, definitely the 2nd hunter. We have been in that situation ourselves. My dad shot a respectable buck a few years ago, lethal shot in the lungs and as we all know, they will still go up to a mile like that. The buck crossed the river and went over to a place where we had no permission and after hearing a shot, we knew that the other guy got him. We went out to the road to see what he looked like and it was definitely a nice buck. That situation was a little tougher considering the shot placement by my dad, but he didn't drop it instantly, so final shot = their deer.