ISIS member seen in execution video believed to be British 'bouncy castle' salesman
Video revives memories of "Jihadi John," another British ISIS member who appeared in several videos in which hostages were murdered before he himself was believed to have been killed.
A file photograph shows a man identified by British media as Siddharta Dhar taking part in a demonstration outside the US embassy in London(photo credit: SCREENSHOT/REUTERS)ByREUTERS