article: He had at least three children. The Metropolitan Police says he was born as Adrian Russell Ajao - but the story appears to be more confusing still, because of a string of alternative names or aliases he used. He was entered onto the birth registry in the Dartford district of Kent as Adrian Russell Elms, in the weeks after he was born on Christmas Day 1964. Elms was his mother's maiden name, but two years after he was born she married a man with the name Ajao. The future killer used the surnames interchangeably before he converted to Islam and became Masood. His mother and her husband lived for a long time in Tunbridge Wells, Kent, where the young Masood, then called Adrian, attended Huntleys School for Boys. His parents later moved to Wales and their Carmarthenshire home was this week searched by detectives from the Wales Extremism and Counter Terrorism Unit. They have not been treated as suspects and the BBC understands from a local source that Masood had been estranged from his parents for some time. Masood had a string of previous convictions for violence and public order offences. His first conviction came when he was 18, in November 1983, for criminal damage. Ten years later he appeared to have settled down. He and his first partner had two children and lived in the village of Northiam, East Sussex. While living there in 2000, Adrian Elms became embroiled in a serious pub attack following what may have been racist provocation and ostracisation or arguments in his village. He lost his temper with Piers Mott, slashing him on his face and leaving an 8cm gash on his left cheek. Mr Mott has since died, but his widow Heather recalled the incident. "My husband was defending someone who was working for him," she said. "I don't know how it happened - Piers was just defending this guy." Elms was jailed for two years after admitting the attack - and never returned to live in the village, although his former partner and children remained there for some years. After his release from jail, he moved to Eastbourne - where a man who knew him as a casual acquaintance told the BBC Elms used both cocaine and bodybuilding steroids. He was also on the cusp of a change in identity. "I first met him in a pub around Christmas Eve 2001," the former electrician told the BBC. "He was introduced as 'Black Ady'. I believe he had just got out of jail at the time." Elms came across as a Jekyll and Hyde character. "Everyone who met him said he was really polite, but he was in a pub one night and two guys were playing pool. "Something was said and he battered them both with pool cues. "One time I noticed a Koran and I made a joke like: 'Are you reading that?' He did not seem the religious type at all. "I spoke to my friend who lived with him for a while and he said he used to read the Koran
summary: The man police say was responsible for the Westminster attack has been formally identified as 52-year-old Khalid Masood.