Londoner Aine Davis is arrested at Luton airport, after getting off a flight from Turkey, having served seven-and-a-half-years in an Ankara prison for being a member of IS.

A man alleged to be the fourth member of the so-called “Beatles” Islamic State terror cell has been arrested in the UK.
Aine Davis, 38, from Hammersmith, west London, was arrested on Wednesday evening after arriving at Luton airport on a flight from Turkey.
He was detained in relation to offences under sections 15, 17 and 57 of the Terrorism Act, 2000.
Officers from the Metropolitan Police’s Counterterrorism Command took him to a police station in south London.
The “Beatles” are thought to have been responsible for the kidnap and holding of more than 20 Westerners, and the execution of at least seven of them, including Britons David Haines and Alan Henning and American aid workers Kayla Mueller and Peter Kassig.
The group caused outrage around the world after releasing videos of the executions of US journalists James Foley and Steven Sotloff.
Source: https://news.sky.com/story/fourth-alleged-beatles-terror-cell-member-arrested-in-uk-12670229