I love Quailfoot's posts, too, always look forward to them. I know what "intent" means, I know they have to prove the charge. And it's not going to be simple, as you said with no witnesses and no proof. If he had "something to do with her disappearance",l what do you think it was? Giving her a ride, taking her to another guy, going to a motel? I'm just reaching for ideas, not trying to put myself in the courtroom yet.
I don't have any idea what happened. You are asking me, at that point, to jump into the minds of several 20-somethings who had been drinking and possibly doing drugs that night, and determine what they were thinking. I think the only person that knows is EA.
My only worry is that he gets off because of the charge they are attempting, and the fact that it appears to be based on the mindset of one girl in the apartment.