Quote Originally Posted by The Black Knight View Post
Go to the 4:55 mark of the video and as the cab driver is leaving, she looks up towards Mandalay Bay and you can see flashes coming from where the 4th floor would be.

Also view the video on YouTube's website, it will allow you to enlarge the video.
Unless they managed to fix the 4th floor window overnight, where's the busted out window? There are certainly some questions surrounding the whole thing, but there are also a lot of conspiracy theories that don't pass even simple questioning.