I read the deer-in-a-tree story and here's what I think happened.
The deer gets spooked by something and jumps up into this tree. Some time afterward a hunter notices it and decides to put it out of its misery with a well-aimed arrow shot.
Yeah, that's it. Would that be so hard to believe? They seem to want to make a big mystery out of it. I bet the truth comes out, and I bet that's it.