"To be more precise, the fact that Dylan, his friends, and family are alive, is proof that "Loose Change" is bull****." (From the link given.)
To be honest, I don't think that this man being alive is quite as conclusive proof as (whoever this guy is) thinks.
Before you jump to conclusions, I don't believe in the theory -- but I do believe in an open mind. Is it not likely that if all those involved in making conspiracy video's mysteriously died, it would be a little bit suspicious. I'm sure [some] of those in the White House would be intelligent enough to see that would be pretty damning. As would removing every crackpot conspiracy theorist's video from the web.
I'm much more interested in the step by step rebuttal of the conspiracy theory. (Which I'm going to read now.)