Plea Agreements Reached with 9/11 Defendants Khalid Shaikh Mohammad, Walid Bin ‘Attash and Mustafa al Hawsawi Department of DefenseAccused Sept. 11 Plotters Agree to Plead Guilty at Guantánamo Bay The New York TimesUS reaches plea deal with alleged 9/11 mastermind Khalid Sheikh Mohammed CNNPentagon announces plea deal with 9/11 mastermind, 2 of his accomplices The Times of IsraelExclusive | 9/11 mastermind KSM and two other terrorists awaiting trial on Guantanamo Bay strike plea deals New York Post