Bin Laden admitted in his own video that he is guilty. http://news.yahoo.com/video/world-15749633/osama-bin-laden-mastermind-of-9-11-attacks-25084752

Well! We don't have the proofs that he is guilty or not because we don't know him personally. I think only media like CNN and BBC says that Osama is responsible for the attack on WTC on 911. But if we see the other side. More than 1500 architectures and engineers in America want to re-investigate that incident. There a lot of documentaries we can find made by engineers that it seems to be an internal job for invading other countries. You can also watch this documentary about 911. Its awesome... http://www.youtube.com/watch?v=atZ5XW60lBE

I don't know Ben laden. Do you know him?if you don't know him so he isn't guilty.you cannot djudj an unknown person.

I don't think that he felt guilt really. He was FIASCO man.