When the DNA doesn't match, it'll be all over. And That's what I'm betting will happen.
They knew where he was living and working and have been watching him for months. Wouldn't it have been extremely easy to get a DNA sample from either location? I wonder if they already have one.
If there IS a conclusive DNA match then it will be interesting to hear an explanation (from ex-wife & pervert) of how this "person" could be in Alabama at Christmas with wife & kids AND be in Colorado to commit the crime