This February 2017 photo provided by his lawyers shows Khalid Shaikh Mohammad in Guantanamo Bay prison in Cuba. On Friday, Aug. 30, 2019, a military judge set Jan. 11, 2021 for the start of the long-stalled war crimes trial of Mohammad and four others being held at Guantanamo on charges of planning and aiding the Sept. 11, 2001 terrorist attacks. (Courtesy Derek Poteet via AP)