Police today named two of the three London Bridge attackers as Khuram Butt, 27, and Rachid Redouane , 30.
It emerged that Butt, a former security guard, was known to the police and MI5 who opened an investigation into him in 2015.
A few months later, detectives got a call from a concerned member of the public on their anti-terrorism hotline with information about his extremism.
The guy was later filmed in by British TV station C4 unfurling an ISIS flag in a public park.
It has now emerged that he had links to notorious British ISIS executioners “Jihadi Sid” and the “Jihadi Giant.”
He was a supporter of the banned Islamist group al-Muhajiroun whose leader Anjem Choudary has been linked to the recruitment of more than 100 British terror suspects.