The joint was trashed. All the furniture and fixtures thrown around, blood everywhere. Chalk outlines of bodies on the ground, too. Which may be fake, but it certainly looked like something bad had happened there. There were these programs lying around for an event that Alice was speaking at, and the first video we found showed Alice speaking in a room that looked like that one--but tidier, of course.

So I figure, the scientists were studying telekinesis and they wanted to use it as a weapon. Alice was their first subject, but either she couldn't control it or they couldn't control her, so when she gives her speech in Hall 5, it ends with her wrecking the place--and the unfortunate people in it. So the scientists go looking for new subjects and find Allen and Elise... but that's as far as my speculation goes. I'm still not sure what happened with them. Kinda sounds like Elise was always a little screwy, though.