A military judge has ruled that plea agreements struck by alleged Sept. 11 mastermind Khalid Sheikh Mohammed and two co-defendants are valid , a government official said Wednesday.

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.

Alleged 9/11 mastermind Khalid Sheikh Mohammed, who has been in prison for nearly two decades, recently reached a plea deal with the U.S. As part of the deal, Mohammed, an al Qaeda operative, and ...

The call comes after Khalid Sheik Mohammed and two of his accused co-conspirators agreed to a plea deal that took the death penalty off the table last week. That deal has since been revoked.

SAN JUAN, Puerto Rico, Oct. 12 -- -- SAN JUAN, Puerto Rico, Oct. 12 -- Khalid Sheik Mohammed, the professed mastermind of the 2001 attacks on the United States, will not be allowed Internet access ...

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 ...

During his first days in detention, senior al-Qaeda operative Khalid Sheik Mohammed was stripped of his clothes, beaten, given a forced enema and shackled with his arms chained above his head ...