It could have had CWD but the fact that it was late December he could have been very stressed from the rut and lost alot of weight. If he had alot of stress it would make sense for him to shed his rack that early. Even the most healthy looking deer can have CWD. Found that out from a neighbor who shot a doe either 4 or 5 years ago. He shot a doe that had plenty of fat on her and appeared to be healthy. We hunt in the CWD zone in Wisconsin so he had it tested and since he had just moved the DNR was trying to find him at his old house to let him know the doe had tested positive for CWD. By the time the DNR contacted him, he and his family had already eaten all of the doe that had tested positive and he is just fine. Once again CWD is a waste of time IMO and it's not something we should worry about. I would be willing to bet that if every state tested for it, you would find it in the herd.