You know, I've thought a lot about this case. First, I think the guy is a nutcase and wishes he were connected to the 9/11 bombings, but wasn't. Second, I can't think of any other prosecution for not stopping a crime that even came close to resulting in a death penalty.... or even a prosecution for not stopping a crime.
Because this guy wishes he had the cojones to have martyred himself, I absolutely think life imprisonment is better punishment. And I can just picture him in general population. I think he'll really wish he were dead then.
BTW, his defense attorney tried to keep him from the death penalty...Mossaoui...not so much.