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Appeals Court Invalidates 9/11 Plea Agreement, Reviving Death Penalty Case

A federal appeals court ruled that Defense Secretary Lloyd J. Austin III was justified in canceling the deal made with key September 11 defendants, potentially opening the door to a prolonged trial.

By Carol RosenbergSource: nytimes.com1 min read
Appeals Court Invalidates 9/11 Plea Agreement, Reviving Death Penalty Case
Image via nytimes.com

In brief

In a significant ruling on July 11, 2025, a U.S. federal appeals court reversed a plea agreement involving Khalid Shaikh Mohammed, the alleged mastermind behind the September 11 attacks, and two co-defendants. The court's 2-to-1 decision underscores the ongoing complexity and delays in legal proceedings at Guantánamo Bay, where families of victims have been awaiting justice for decades. Though the ruling casts uncertainty over the future of the trial, further appeals are anticipated, and a new military judge will need to familiarize themselves with the substantial case records before moving forward.

The plea deal, struck in the summer of 2024, aimed to mitigate the accused's sentences to life in prison and avoid a capital trial. However, this agreement was declared void shortly after it was made by Defense Secretary Austin, who asserted his legal authority to withdraw from the arrangement. The appellate court judges agreed, emphasizing that no commitments had been fulfilled when the withdrawal occurred, thus leaving the fate of the trial contingent on further legal developments.

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