That halloween party was attended by guys from 501st! Was alot of talk about that just after the happening itself. They were just not allowed to say anything about it beforehand.
"This threshold is mine. I claim it for my own. Bring on your thousands, one at a time or all in a rush. I don't give a damn. None shall pass."
"I'm not a Jedi. I'm just a man with a lightsaber... and a few questions.." http://www.fightsaber.com/