Channel 4 to show unseen footage of suspected British Isis killer

The Jihadi Next Door will feature Abu Rumaysah, the London Muslim convert thought to have overseen the murder of five men Unseen footage of the man suspected of being the latest British face of Islamic State propaganda is to be shown by Channel 4 on Tuesday night. The man who oversaw the murder of five men in an Isis video released in January was thought to be a London Muslim convert called Siddhartha Dhar, who appears in a Channel 4 documentary about extremists titled the Jihadis Next Door.