His page on the social media site VK suggest a young man apparently obsessed with his body – it is dominated by a series of pictures of him in a gym, showing off his toned physique.

Now he uses Twitter to glorify the “Caliphate” of Abu Bakr al-Baghdadi, the leader of the Islamic State, and to post gory pictures including one of two heads in a basket, which he compares to the heads of sheep that can be ordered for the table in specialist Egyptian restaurants.