I know ISIS butcher known as John the Jailer': French former hostage says he has a 'rough' idea who masked British jihadi is
Richard Barrett, who was head of counter-terrorism for the security services at the time of 9/11, said he is convinced the murderer - now considered the world's most wanted man - will be arrested and taken back to Britain for trial 'sooner or later'.
Mr Barratt told the Today Programme: 'They will be able to identify him, although there are four or five hundred people who have gone from all over the United Kingdom many of them have made their presence there known........
The Government says there are around 500 British among the fighters while a further 250 are thought to have already returned to the UK where the police and security services are attempting to watch them.
That means there are now almost three times as many British Muslims fighting for Islamic State than there are serving in the UK military, an MP has claimed.
But Khalid Mahmood, Labour MP for Birmingham Perry Barr, told Channel 4 News the lack of border controls meant the Government's estimates of jihadi numbers were too low. 'I think it's about 2,000 people,' he added........
British man in James Foley video identified as 'John' - a London jihadis | Mail Online