i was i NY earlier this year learning how to train dogs how to track wounded game. one of the guys we were helping related this story. early season 2004 arrowed a nice buck that he though he hit good ....never found it. at the end of the season a neighbor called him he had arrowed a nice buck and in field dressing discovered that it had a collapsed lung and there was his broadhead and 6" of arrow in it. it have heard similar story from elk hunters. i would guess that is what has happened. if tracling dogs are legal in your state contact people that do that to get them to helping the future......they don't find all deer but they wioll find some that you would never fine eye tracking.