Me too!
I think the biggest thing that may have caused reasonable doubt was the other set of shoe prints which did make me take a breath the first time I heard about that years ago (probably from a JTF post).
I think they also need to explain his cleanup a little better - maybe by showing that he could have stripped in the room, put his stuff in the garbage bags in the BR and then came downstairs and just used the hose to get his hands after he left the blood on that doorknob.
I also thought they could have refuted the hair on the picture frame better - they did say it could have been from previous parties, etc but didn't explain well that forcibly removed could have been from a brush - i think someone here was the one to explain that to me.