Khalid Sheikh Mohammed, the accused mastermind of the Sept. 11 terror attacks, and three alleged co-conspirators will stand trial in 2028, a military judge ruled Wednesday.

Lt. Col. Michael Schrama set the trial for June 5, 2028, rejecting prosecutors’ request to begin proceedings in January 2027. Mohammed and the three other defendants have been held at Guantánamo Bay since 2003 in the long-delayed case stemming from the attacks that killed nearly 3,000 people.

This is a developing story. Check back later for updates.