A few things:
1. I didn\'t see the mess of broken mirrors and whatnot, but are we positive that this wasn\'t done before the show? Would we definitely have noticed?
2. I too am getting a suspicion that somebody who is ready this right now has the information. It\'s not a feeling that I like having.
3. Just out of curiosity, do we have confirmation that all of the doors were locked when the last people left that night/first person showed up that morning? If we can rule the unlikely situation that somebody broke in to the UAC just to break mirrors and assume that it happened after the show, that information would at least give us an idea of who should have seen it happen.