The photograph is nearly a decade old, but it is not difficult to imagine that the young man staring inscrutably into the camera, his face bathed in the white light of a flash, now looks much older. The clean-shaven teenager, about 16 or 17, with close-cropped black hair, probably has a long beard now. Gone will be the stylish patterned T-shirt he’s wearing, which looks like it was picked up at a local H&M. Ditto the blingy chain around his neck. If the ravages of time have been accelerated on this young face in the nine years since this portrait was taken then it is because the young man has got the blood of hundreds on his hands, blood that has been spilled in two capital cities of Europe.