The self-proclaimed "mastermind" of the 9/11 attacks will stand trial in June 2028, a military judge ruled Wednesday, nearly 25 years after the attacks.Khalid Sheikh Mohammed has been held at Guantanamo since 2003.This photo obtained, March 1, 2003, shows, Khalid Sheikh Mohammed, alleged organizer of the September 11, 2001, attacks, shortly after his capture.AFP via Getty Images"Trial on the merits shall begin on Monday, 5 June 2028," Lt. Col. Michael Schrama decided.Popular ReadsProsecutors sought a trial in 2027 but the judge said that was too soon.This is a developing story. Please check back for updates.