Mr. Ali, who lived nearby in the borough of Haringey, died from multiple injuries, the Metropolitan Police said on Thursday, citing a postmortem examination.

Image Makram Ali Credit... London Metropolitan Police

He was the only person to have died in an attack that is being treated as a terrorist act targeting Muslims. Nine people were taken to hospitals; four remained in care on Thursday, two of them in critical condition.

“Our father was a quiet, gentle man,” his daughter Ruzina Akhtar said in a statement on behalf of the family on Thursday, after meeting with the Metropolitan Police commissioner, Cressida Dick.

She added, “He didn’t get involved in political or social discussion; he instead took comfort and enjoyment spending time with his wife, children and grandchildren, and he was always ready to make a funny joke when you least expected.”

Muslim communities in Britain have reported an increase in prejudice and anger directed at them in the wake of three terrorist attacks since March — two in London, and one in Manchester, England — for which the Islamic State has claimed responsibility.