Five who slipped through net

THESE five extremists carried out terror attacks while they were known to the police or security services.

Counter-terror agencies are facing criticism that they let the five slip through the net.

Some were under investigation by the authorities and with others there were multiple warnings from friends and family.

They were allowed to roam free and to carry out their plots, killing more than 30 innocent men, women and children.

BUTT

KHURAM Butt, 27, was under investigation by police when he joined the terror attack at London Bridge. A British national born in Pakistan, he came to the attention of the authorities in 2015 and a few months later officers were contacted by someone concerned Butt had been radicalised. But the case was downgraded due to lack of evidence.

ABEDI

THE 22-year-old suicide bomber killed 18 and injured 116 at an Ariana Grande concert in Manchester on May 22. He was born and raised in Manchester to Libyan refugees.

Two people who knew Abedi at Manchester College made separate calls to an anti-terrorism hotline to warn police about his extreme views.

MASOOD

MUSLIM convert khalid Masood, 52, killed four and injured 50 in an attack near the Houses of Parliament on March 22. The father of three, originally from Kent, had several different identities, including Adrian Elms. Masood had convictions dating back over 20 years, though none were for terrorism. ADEBOLAJO THE 32-year-old Muslim convert from East London had featured in “several investigations” but was not deemed to be planning an attack before he murdered Fusilier Lee Rigby in 2013.

Michael Adebolajo travelled to Somalia to join al-Shabaab in 2010. He came to the attention of MI5 after he was deported from Kenya. ZAGHBA THE 22-year-old Italian was suspected of attempting to travel to Syria last year.

Youssef Zaghba, who had an Italian mum and Moroccan dad, was reportedly stopped at Bologna airport and told authorities: “I am going to be a terrorist.” Authorities in Italy tipped off British counterparts about him but he was apparently able to enter Britain and get a job in a London restaurant.