Mohammed Emwazi (born Muhammad Jassim Abdulkarim Olayan al-Dhafiri, 17 August 1988) is a Kuwaiti-British man who is thought to be the person seen in several videos produced by the Islamic extremist group ISIL showing the beheadings of a number of captives in 2014 and 2015. A group of his hostages nicknamed him "Jihadi John" since he was part of a four-person terrorist cell with British accents whom they called "The Beatles".