The tall British executioner was clad in all black and is wearing a facemask, however, sources within Britain are already starting to identify him. He is the allegedly the leader of a group of British ISIL fighters in Syria. He is known, thus far, only as "John." A former hostage of these fighters identified him to The Guardian as the head guard in Raqqa. One of his former hostages described him as "intelligent, educated and a devout believer in radical Islamic teachings." He was born in the United Kingdom.