ISIS posted a video claiming to show the execution of five prisoners it says spied for Britain in Syria. The video has not been independently verified, but .br WARNING GRAPHIC CONTENT: ISIS released a new video that it says shows the moment five alleged British spies were executed. In a chilling move, the terror .br RAQQA, SYRIA — ISIS has published a new video showing an unmasked man executing a Russian hostage believed to be 23-year-old Khasiev Magomid.br ISIS militants have posted photos featuring the execution of 3 alleged spies. Visit our infotainment partner : Subscribe Our Channel , For More .