Khalid Sheikh Mohammed was captured in 2003, but disputes over torture, evidence and a plea agreement have prolonged one of the most complex legal proceedings in the United States.

The trial of alleged mastermind Khalid Sheikh Mohammed and three other defendants accused in the 9/11 attacks is set to begin on June 5, 2028, according to EFE.

Mohammed was captured in 2003 and transferred to Guantánamo in 2006, where he remains detained under strict security measures.

The case has been shaped by disputes over evidence obtained after interrogations and alleged torture while he was in CIA custody.

The dispute: Courts must determine which evidence can be used without relying on information obtained through controversial interrogation methods.

In July 2024, Mohammed and two other defendants reached an agreement to plead guilty and avoid the death penalty.

That deal was later revoked, sending the case back toward a trial that still had unresolved legal issues.

Prosecutors proposed beginning the trial in January 2027, but military judge Michael Schrama concluded that the schedule was not feasible.

He therefore set June 5, 2028, as the new date, allowing more time to resolve pretrial issues before selecting the military jury.

The September 11, 2001 attacks killed nearly 3,000 people. The process of determining the criminal responsibility of their alleged organizers remains unresolved more than two decades later.

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