Britain's supermarket jihadi: ISIS fighter who plans to 'bomb the UK' is unmasked as Morrisons security guard who was arrested on way to Syria - but LET GO by police

                                                      Omar Hussain (right), 27, who previously worked as a security guard for Morrisons (inset) in High Wycombe, Buckinghamshire, travelled to wage war in Syria despite being known to police. Astonishingly, he is still in contact with friends in this country and has told them he witnessed the execution of American journalist James Foley. According to community leaders in High Wycombe, police knew of his extremist views and had arrested him at Heathrow last year on suspicion that he was trying to travel to Syria.