Khuram Butt, 27, was born in the Pakistani city of Jahelum but was a British citizen. He lived in a flat in Barking, east London, with his wife and two children. At the time of the attack, he was unemployed.
Police say Butt, 27 was the ringleader of a terrorist attack which targeted members of the public on London Bridge and nearby Borough Market. He and two other men killed eight people before being shot dead by armed officers. Butt – who was born in Britain – lived in East London. He was investigated by police and MI5 because of concerns he was an extremist but because he showed no signs of planning an attack the investigation was downgraded.
He had a Security Industry Authority (SIA) licence, which is required by security workers and involves a criminal record check. Before this, Butt claimed jobseeker’s allowance for seven months and later worked in an administrative role between 2012 and 2015 for a company based in East Ham, which manages Kentucky Fried Chicken outlets.
Butt was known to police and security services; an investigation into him began in 2015, when one man called the terrorism hotline after concerns that Butt had been radicalised. A woman also went to police after she became concerned that Butt was trying to radicalise her children.
Butt watched propaganda videos made by the militant group Islamic State, and wanted to travel to Syria. Butt openly expressed extremist views at family gatherings. He associated with al-Muhajiroun, the banned extremist group whose leader Anjem Choudary has been linked to the recruitment of more than 100 British terrorism suspects.
He was buried in secret after 130 imams refused to perform his funeral prayers near his family home in East London.