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Like, what are you talking about? like, what do you mean, like, hows that possible, what happened? >> the very questions that wake county investigators were asking, themselves. >> as the investigation gets under way, a security camera provides a critical clue. its not what it caught, its what it missed and why. coming up -- >> there was a camera there that had been unplugged. >> really? >> yes. it was one of the side exits of the hotel. >> who had something to hide? when "silent witness" conti...