LONDON: The masked militant in an Islamic State video showing the killing of five men accused by the group of being Western spies is believed to be a Londoner known as Sid who once sold inflatable bouncers. Siddhartha Dhar, who left for Syria from Britain while on police bail after his arrest on suspicion of belonging to a banned group and encouraging terrorism, has been identified by media as the spokesman in the militant organisation’s latest film. The footage revived memories of "Jihadi...