Creation of a teenage Satanist

When a 14-year-old girl began talking to other teenagers online, her mother was not too worried.

But within weeks, Christina (not her real name) found her daughter's behaviour had spiralled out of control.

Her daughter had fallen victim to the extreme online right-wing Satanist group called 764. These groups consist primarily of teenage boys and young men who want to harm girls.

At least four British teenagers have been arrested in connection with the activities of the international group, including 764 member Cameron Finnigan from Horsham in West Sussex. He was jailed for six years in January.