Khalid Sheikh Mohammed is an Islamist militant, who was named as 'the principal architect of the 9/11 attacks'. One of the most dreaded faces of radical Islamic terrorism, he was born in Pakistan, brought up in Kuwait and joined forces with militants at a tender age of 16. A well educated man, Khalid first fought against the soviet occupancy in Afghanistan in the 80s and then he shifted his attention towards the United States, getting himself engaged in many different terrorist plots to weaken the US government. His ambitions to join al-Qaeda grew further while in hiding and he moved to Afghanistan to become the group’s media chief and kept providing his inputs in the terrorist activities of al-Qaeda and eventually the 9/11 happened, which was his brainchild. Getting on USA’s most wanted list grew his reputation, only until he was caught in 2003 in Rawalpindi, Pakistan, in a combined operation by ISI and the CIA. He was kept in high security prison in the Guatemalan Bay. In the custody, he confessed to have masterminded the 9/11 attacks along with several others terrorist plots such as the Daniel Pearl murder, Bali Nightclub Bombing among others.