Well, that proves it. After 5 years of detention and likely torture he finally admitted his wrongdoing.

Anybody here would've confessed long ago if subjected to the same treatment. This guy lasted 5 years.
Perp Reviewed by Perp on . 9/11 mastermind confesses in Guantanamo WASHINGTON - Khalid Sheikh Mohammed, the suspected mastermind of the Sept. 11 attacks, confessed to that attack and a string of others during a military hearing at Guantanamo Bay, Cuba, according to a transcript released Wednesday by the Pentagon. Mohammed claimed responsibility for planning, financing, and training others for bombings ranging from the 1993 attack at the World Trade Center to the attempt by would-be shoe bomber Richard Reid to blow up a trans-Atlantic flight with explosives Rating: 5