The 9/11 Al Qaeda terrorist attack on this city and this nation occurred nearly two dozen years ago and has long entered the history books, but chapters are still being written about the perpetrato… ...

The deal would have allowed Khalid Sheikh Mohammed to avoid the death penalty in exchange for life without parole.

The accused 9/11 mastermind's case remains in limbo after an appeals court this week scrapped a plea deal that the government had negotiated but later withdrew.

A divided federal appeals court in Washington, D.C., tossed out an agreement that would have let 9/11 mastermind Khalid Sheikh Mohammed plead guilty to end a years-long legal saga surrounding the ...

A federal court canceled a plea deal for an alleged 9/11 mastermind Khalid Sheikh Mohammed and co-defendants, extending the case.

Federal appeals court rejects plea deal for Khalid Sheikh Mohammed, accused of 9/11 attacks. Death penalty charge reinstated.

Federal judges ruled 2-1 that Defense Secretary Austin had legal authority to cancel the Guantánamo Bay plea deal for Khalid Sheikh Mohammed in the 9/11 case.

A divided federal appeals court overturned a plea deal for 9/11 mastermind Khalid Sheikh Mohammed, upholding Defense Secretary Austin's authority to withdraw the agreement.