Khalid Sheikh Muhammad was the mastermind behind the 9/11 attacks, the Bali Nightclub Bombing in Indonesia, and the 1993 World Trade Center bombing. He is currently imprisoned inside Guantanamo Bay detention camp.
Khalid Ahmed Showky Al-Islambouli was an Egyptian army officer who planned and participated in the assassination of Egypt's third president, Anwar Sadat, during the annual 6th October victory parade on 6 October 1981. Islambouli stated that his primary motivation for the assassination was Sadat's signing of the Camp David Accords with the State of Israel. He was tried by a military tribunal, found guilty, and sentenced to death. Following his execution, Islambouli was declared a martyr by many radicals in the Islamic world, and became an inspirational symbol for radical Islamic movements as one of the first 'modern martyrs' for Islam.
Khālid al-Bakrāwī, also known as Abū Walīd al-Baljīkī, was a Belgian national of Moroccan descent, confirmed to be the suicide bomber at the metro station in the 2016 Brussels bombings.