This comes 16 years after the prosecution began and 23 years after the terrorist attacks.
Mohammed and two accomplices, Walid bin Attash and Mustafa al-Hawsawi, are expected to enter the pleas at the military commission at Guantanamo Bay, Cuba, as soon as next week.
According to the letters sent to the federal government by the relatives of nearly 3,000 people killed on the morning of September 11, 2001, defense attorneys offered the men life sentences in exchange for pleading guilty to the murders of 2,980 people listed in the indictment.
