The son-in-law of Ayman al-Zawahiri,[1][2] Abu Turab al-Urduni (also Abu Turab al-Jordani[3]) was a Jordanian who has been described by the United States government as one of five individuals who were aware of the operational details of the September 11th attacks, along with Osama bin Laden, Khalid Sheik Mohammed, Ramzi bin al-Shibh, and Mohammed Atef. US intelligence reports indicated that he was killed by US troops in 2001.[4]