That's heart breaking; when their day started to go bad, it certainly didn't get any better did it. You do the best you can, but once the ball's rolling, you never really know how its going to come out in the end. Shooting an animal that is on a human victim is probably one of the most difficult problems there is to solve. This nightmare is a problem some of us have given much thought to, but there doesn't seem to be any hard and fast solution, and I certainly wouldn't think poorly of the young man who found himself in that situation and who at least tried to do something.