US reaches plea deal with alleged 9/11 mastermind Khalid Sheikh Mohammed CNNAccused Sept. 11 Plotters Agree to Plead Guilty at Guantánamo Bay The New York Times9/11 alleged mastermind Khalid Sheikh Mohammed and 2 others reach plea deal ABC NewsLawmakers slam Biden administration plea deal that spares death penalty for 9/11 mastermind and two accomplices: ‘National disgrace’ New York Post Accused 9/11 plotters reach plea deals with U.S. to avoid death penalties The Washington Post