Sounds nuts, but the first buck I ever harvested died with a shot like that. He was quartering away, probably a little more than I liked, but I had an opening. I pulled my shot just a bit and right in the ham. I got very lucky and hit the femoral artery. Died within 20 yards of the shot. Not saying the guy did the same thing by any means, but crazy stuff happens. Glad to see the animal was harvested and no longer having to endure a broad head in the rump. That would suck.