On May 1st, the mastermind behind 9/11 was found dead! 9/11 was a tragic event that happened on 9/11/2001. Planes were taken control of by terrorists. They crashed into the Twin Towers, which toppled both of them, and luckily only a slice of the Pentagon. A third plane crashed into fields after protesters took control of the plane again. 9/11's masr=termind was Osama Bin Laden. He was killed during a gun fight. He's currently in the posession of the U.S., and was confirmed dead at approximate...