I went out and followed where I knew he had ran. Could not find any more blood. I combed the property really good, no luck. I did not however check a pond that is close by. I will go out and check that pond soon after I get permission. I spoke with another guy who had a similiar hit already this fall and said the story was almost the same and they never found the deer and actually seen the deer 2 days later. I just hope the deer survived. Thanks for all of the responses.
this sounds weird,,, but make sure you check IN the pond too... sometimes when they are hit, they try to get that burn away by getting in something wet or cold. I've seen where deer have jumped into creeks (once they settled down) and ended up expiring there.
Try the flag thing!