NEW YORK — The United States' long legal case against accused Sept. 11 mastermind Khalid Sheikh Mohammed remains in limbo after an appeals court this week scrapped a plea deal that the government had ...

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 perpetrators ...

Khalid Sheik Mohammed and other defendants skipped Friday's pretrial hearing. Hours before the 20th anniversary of the 9/11 terrorist attacks, pretrial proceedings in the case against the five accused ...

The man long-considered the most responsible for the September 11 terrorist attacks has been in prison a long time—so long that he appears to have had time to reinvent common household appliances. A ...