Is the former bodyguard (Mohammed Reza Haque) to hate preacher Anjem Choudary the new 'Jihadi John'?
Counter terror officials are probing if Haque has appeared in a chilling propaganda video for IS, beheading a prisoner.
Haque, from Bethnal Green, East London, has previously been pictured acting as a bodyguard for Choudary at demonstrations in London. Choudary was jailed in September for five years and six months for promoting support for IS.
Someone who appears to be Haque features in the newly released video dressed in black and using a hunting knife to cut the head off a bound and kneeling captive, the Mail on Sunday reported.
Thirty-six-year-old Haque was nicknamed Giant by his fellow jihadis after fleeing to Syria in 2014.
Earlier this year it was reported he was among a group of masked executioners to feature in an IS execution video. He was believed to be the man standing next to Brit Siddhartha Dhar, also known as Abu Rumaysah.
Counter terror sources confirmed that Haque is in Syria and said they were probing the video.
