I would think if it was an arrow the deer would look alot worse than it does. archer season ended over two weeks before the picture was taken. Infection willl set in and make that deer very sick and week; if not kill it. My guess is it was shot with rifle sometime last week. If that is the case it will probably not live too long. Like said earlier...I would see if I could get more pics or video (as smitty said). If it is truely shot, I would hunt it diligently to put it out of its misery. I have a multi season tag and still have my deer tag. I would waste my late palouse tag to help if needed.