Mohammed Emwazi born Muhammad Jassim Abdulkarim Olayan al Dhafiri Arabic was a British Arab believed to be the person seen in several videos produced by the Islamic extremist group ISIL showing the beheadings of a number of captives in . A group of his hostages nicknamed him “John” since he was part of a four person cell with English accents whom they called “The Beatles” the press later began calling him “Jihadi John”.. ISIS has confirmed the of “Jihadi John” aka Mohammed Emwazi, aka Abu Muharib al Muhajir in the latest issue of its Dabiq magazine..The British ISIS dubbed Jihadi John was killed by U.S. drone after he was given away by his beard and the way he walked, a new documentary claims. The, whose real name was . MASKED executioner Jihadi John was responsible for taking part in the executions of seven western hostages and at least Syrians in sick ISIS propaganda videos. But who was Jihadi John, how was .