From the National Post
A captured al-Qaeda operative has told Canadian intelligence investigators that a Montreal man who trained in Afghanistan alongside the 9/11 hijackers was responsible for the crash of an American Airlines flight in New York three years ago.
The source claims that Abderraouf Jdey a/k/a Farouk the Tunisian downed the plane with explosives, but no evidence of explosives was found (all you conspiracry theorists are free to snort, "Hah! You mean no evidence of explosives was reported!").
Jdey is wanted by the FBI and whereabouts are unknown.