Jihadi John
Mohammed Emwazi (born Muhammad Jassim Abdulkarim Olayan al-Dhafiri; Arabic: محمد جاسم عبد الكريم عليان الظفيري), commonly referred to as Jihadi John (17 August 1988 – 12 November 2015), was a British militant of Kuwaiti origin seen in several videos produced by the Islamist extremist group Islamic State (IS) showing the beheadings of a number of captives in 2014 and 2015. A group of his hostages nicknamed him "John" since he was part of a four-person terrorist cell with English accents whom they called 'The Beatles'; the press later began calling him "Jihadi John".