The 52-year-old, who was known by a number of aliases and is understood to have gone by the names Adrian Elms and Adrian Russell, was born in Dartford, Kent.
PC Keith Palmer, 48, college worker Aysha Frade and US tourist Kurt Cochran, 54, were killed on Wednesday, while 75-year-old Leslie Rhodes, from Streatham in south London, died on Thursday evening (March 23).
They use the catch-phrase "Jihotties" to attract the ladies.
He had not been convicted of any terrorism offences.
According to Trevor Noah, it’s like the for terrorists searching for love.
If a terrorist dies they just move his lady-love on to another terrorist. ISIS is encouraging the men to marry these women without ever even seeing them.
“Do you realize how we could take advantage of that? on those dating sites, then on the wedding night when the ISIS husband is like ‘take off your burka! You just got catfished by some SEAL Team 6, asshole!
Detectives believe Masood had most recently been living in the West Midlands.
Masood drove into pedestrians on Westminster Bridge before crashing his car into railings and then running into the grounds of Parliament, armed with a knife. Man jailed for attempted murder after shotgun shooting at couple in car in Broadfield Masood is understood to have stayed in the Preston Park Hotel, in Brighton, the night before he carried out the horrific attack, telling staff as he checked out that he was he was going to London.
Email scam is an unsolicited email that claims the prospect of a bargain or something for nothing.
Some scam messages ask for business, others invite victims to a website with a detailed pitch.
The statement adds: 'Our thoughts are with those killed and injured, their families and others affected.'For anybody requiring any further information, the Metropolitan Police have issued the following casualty bureau numbers: 08 and 020 7158 0197.
Khalid Masood who police have identified as being responsible for the London terror attack in Westminster is believed to have previously lived in Crawley.
"Where it's about romance, about a perfect life, it's about making everything bad in their past go away, because now they're going to have a perfect future," said Prof.