Police say Imran Khawaja , of west London , trained with a terror group in Afghanistan last year . He was in a promotional video showing him holding a severed head , police say . Sometime later , the group announced he was dead -- but police say it was only a ruse , uncovered when he was arrested trying to re-enter the United Kingdom . The terror group thought he 'd died , but he really was trying to get to the UK , where he was arrested , police say .
Police say Imran Khawaja , of west London , trained with a terror group in Afghanistan last year . He was in a promotional video showing him holding a severed head , police say . The terror group thought he 'd died , but he really was trying to get to the UK , where he was arrested , police say .