The Metropolitan Police arrested a 38-year-old man at Luton Airport on terrorism charges on Wednesday, August 10th, the Metropolitan Police said in a statement.
The man arrested was Aine Davis, who was accused of being part of an Islamic State ISIS cell that murdered hostages, according to the BBC. The group of four men, who were with ISIS in Syria, was nicknamed The Beatles by hostages because of their British accents.
The police statement did not identify the person arrested. He was arrested in connection with offences under sections 15, 17 and 57 of the Terrorism Act, 2000, and was taken to a south London police station where he is currently in police custody. The BBC reported that Davis, of London, flew into Luton Airport after his release from prison in Turkey, where he was serving a seven-and-a-half year sentence for a conviction on terrorism charges.
The Islamic State cell published videos of the murders of four U.S. citizens in 2012 and 2015 - James Foley and Steven Sotloff, as well as aid workers Kayla Mueller and Peter Kassig. Two British aid workers and two Japanese journalists were among the victims.