# Khalid Sheikh Mohammed 9/11 military trial > Live situation record from CLSTR: https://clstr.news/situations/khalid-sheikh-mohammed-911-military-trial > Updated: 2026-08-27T05:34:41.000Z. Sources: 64. Developments: 2. Legal proceedings against Khalid Sheikh Mohammed, the alleged mastermind of the September 11 attacks, and three co-defendants face ongoing delays at the Guantanamo Bay detention camp. These delays stem from procedural disputes regarding the admissibility of evidence and allegations of torture during interrogations at CIA black sites. The legal process was significantly impacted in July 2025 when a U.S. appeals court overturned a plea agreement that would have allowed Mohammed and two others to avoid the death penalty in exchange for guilty pleas. Following a rejected prosecution request to begin proceedings in January 2027, U.S. military judge Air Force Lt. Col. Michael Schrama has tentatively scheduled the trial to begin on June 5, 2028. The ruling rejects the earlier timeline, noting that additional time is required to resolve complex pretrial evidentiary and compliance motions. Mohammed, who has been held at Guantanamo since 2006, will be tried alongside co-defendants Walid bin Attash, Ali Abdul Aziz Ali, and Mustafa Ahmed al-Hawsawi. The defendants face charges including conspiracy, murder, and hijacking. The 2028 date remains tentative and subject to further delays depending on the resolution of ongoing procedural motions. ## Claims - Military judge Lt. Col. Michael Schrama has tentatively scheduled the trial for June 5, 2028. (corroborated by 34 sources) - The judge ruled that a January 2027 trial date was unrealistic. (corroborated by 27 sources) - In July 2025, a U.S. appellate court canceled a plea deal that would have allowed Mohammed and two other detainees to avoid the death penalty. (corroborated by 21 sources) - The trial date may be postponed due to unresolved procedural issues regarding admissible evidence. (corroborated by 21 sources) - Khalid Sheikh Mohammed was arrested in Pakistan in March 2003. (corroborated by 20 sources) - The trial date depends on meeting various procedural deadlines and milestones. (corroborated by 19 sources) - The court is considering whether to suppress confessions from Ammar al-Baluchi due to torture allegations. (corroborated by 19 sources) - Prosecutors are seeking the death penalty against the defendants. (corroborated by 18 sources) - The September 11, 2001 attacks resulted in the deaths of approximately 3,000 people. (corroborated by 17 sources) - Mohammed was transferred to the Guantanamo Bay detention camp in September 2006. (corroborated by 17 sources) - Khalid Sheikh Mohammed, Walid bin Attash, Ali Abdul Aziz Ali, and Mustafa Ahmed al-Hawsawi are accused of terrorism and the murder of nearly 3,000 people. (corroborated by 14 sources) - Prosecutors had proposed starting the trial in January 2027. (corroborated by 13 sources) ## Timeline ### 2026-08-27: September 11 suspect faces potential trial delays A trial for a suspected key organizer of the September 11 attacks faces potential delays due to procedural issues following the overturning of a plea deal in July 2025. 3 sources. https://clstr.news/cluster/september-11-suspect-faces-potential-trial-delays ### 2026-08-26: Khalid Sheikh Mohammed trial set for June 2028 at Guantanamo A U.S. military judge has set June 5, 2028, as the trial date for 9/11 mastermind Khalid Sheikh Mohammed and three co-defendants at Guantanamo Bay, following the rejection of an earlier 2027 start date. 61 sources. https://clstr.news/cluster/khalid-sheikh-mohammed-911-trial-set-to-begin-in-2028 --- Cite as: Khalid Sheikh Mohammed 9/11 military trial. CLSTR, https://clstr.news/situations/khalid-sheikh-mohammed-911-military-trial