Jihadi John

The only journalist to interview 'Jihadi John' reveals how Mohammed Emwazi went from London teenager to world's most wanted terrorist. When Islamic State's black-masked executioner, 'Jihadi John', was revealed to be Mohammed Emwazi, a 26-year-old IT graduate from west London, senior security editor Robert Verkaik was shaken more than most. In 2010 he'd interviewed this man. At the time Emwazi had claimed MI5 were ruining his life. He was desperate for his story to be told, believing that going public might force the security services to leave him alone. Verkaik's investigation into the making…