But he was a “peripheral figure,” says Theresa May: apparently there are a great many other Muslims in Britain who are even more violent and unhinged than Khalid Masood, and so there was no question of keeping him under surveillance. It is the Islamic State’s plan to overwhelm law enforcement with so many attacks and plots that the whole system collapses. It looks as if this plan is working just fine in the UK.

“EXCLUSIVE: London terror attacker Khalid Masood, 52, once stabbed a man in the FACE and changed from Kent schoolboy Adrian Elms to maniac who launched car and knife rampage through Westminster,” by Richard Spillett, Martin Robinson and Thomas Burrows, MailOnline, March 23, 2017:

The British-born jihadi who killed four and injured 29 in Westminster was last night revealed to be a middle-aged criminal career who MI5 had investigated in the past and had a previous conviction for stabbing a man in the nose.

English teacher Khalid Masood, 52, a ‘lone wolf’ attacker, who was living in the Birmingham area, had a series of convictions for assault and other crimes.

Scotland Yard revealed how Masood was known by a number of aliases and MailOnline can reveal he was born Adrian Elms to a single mother in Kent before his religious conversion. Masood has used the names Khalid Choudry and Adrian Ajao among others.

He grew up in a £300,000 house in the seaside town of Rye, East Sussex and had a long criminal history.

His first conviction was for criminal damage in November 1983, when he was just 19.

His last was for an attack in 2003, where he stabbed a 22-year-old man in the face, leaving him slumped in the driveway of a nursing home in Eastbourne. The victim was left needing cosmetic surgery after the vicious attack.

Masood is understood to have spent time in Lewes jail in East Sussex, Wayland prison in Norfolk and Ford open prison in West Sussex, The Times reported.

He was sentenced to two years for wounding in 2000 and sent back to jail in 2003 for the attack in Eastbourne.

Masood had never been convicted of terror offences, although Theresa May revealed this morning that he had been on MI5’s radar a number of years ago.

Police insist there was no intelligence suggesting he was about to unleash a terror attack.

Masood was a married father-of-three, and a religious convert who was into bodybuilding, according to Sky News. He had falsely given his profession as a teacher….

A Scotland Yard spokesman said this afternoon: ‘Masood was also known by a number of aliases. He was not the subject of any current investigations and there was no prior intelligence about his intent to mount a terrorist attack.

‘However, he was known to police and has a range of previous convictions for assaults, including GBH, possession of offensive weapons and public order offences.

‘His first conviction was in November 1983 for criminal damage and his last conviction was in December 2003 for possession of a knife. He has not been convicted for any terrorism offences.’…

Giving details of the attacker’s background in Parliament today, Prime Minister Theresa May said: ‘The man was British-born and – some years ago – he was once investigated in relation to concerns about violent extremism. He was a peripheral figure.

‘The case is historic – he was not part of the current intelligence picture. There was no prior intelligence of his intent – or of the plot. Intensive investigations continue.’

Masood, 52, was born on Christmas Day 1964 in Kent as Adrian Elms, to his unmarried mother, Janet Elms. A little under two years later she married Phillip Ajao in Crawley, West Sussex….

By now using the surname Ajao, Masood met a woman and they had a child in 1992 before settling in the village of Northiam, near Hastings, East Sussex.

What happens over the next decade is unclear, but in 2003, he was accused of stabbing a man in the face. Masood was running a television aerial installation business at the time, [sic]

The following year, he appeared in Medway, in Kent, where he married a local Muslim woman. Six years later, he was living in Luton, which is known for its links to extremism….