Yeah that deer probably died a slow painful death,being eaten literally alive.I did see a couple coyotes running a doe,biting its rear,a few years back it layed down with its legs folded under,the only time the yote could actually bite her was in the rump,when he got up front he would get a whack to the head.Not doubting the photo at all,mabye the deer has lost alot of blood and is in shock,totally exausted or hes got it by the throat?