When two planes struck the twin towers of the World Trade Center in Manhattan on Sept. 11, 2001, Khalid Sheik Mohammed was sitting in an Internet cafe in Karachi, Pakistan, monitoring the attacks.

The unclassified comments by Khalid Sheikh Mohammed, who will soon turn 50 and who has spent the last decade in U.S. custody, come a year and a half into the pretrial phase of his military ...

Khalid Sheik Mohammed, the alleged mastermind of the Sept. 11, 2001, attacks, confessed at a Guantanamo Bay military hearing that he planned and funded that al-Qaeda operation and said he was ...

It's official. Sooner rather than later, Khalid Sheik Mohammed, an al-Qaeda leader who by all accounts spearheaded planning for the Sept. 11, 2001, terrorist attacks, will stand trial in a federal ...

Khalid Sheik Mohammed, 44, is the self-proclaimed mastermind of the attacks. The Kuwait-born Pakistani proposed to al-Qaeda leader Osama bin Laden a plot in which aircraft would be used to attack ...