Four people were killed, along with the attacker, in Wednesday’s attack in Westminster, close to the Houses of Parliament.
At least 50 people from 12 different countries were injured, of whom 31 needed hospital treatment. Two remain in a critical condition.
‘Fit as a fiddle’
Scotland Yard’s Acting Deputy Commissioner Mark Rowley named the 75-year-old man who died on Thursday night as Leslie Rhodes, from Streatham in south London.
Police said he had life support withdrawn for injuries he received during the attack.
Mr Rhodes, a retired window cleaner, is thought to have been visiting a nearby hospital when he was hit by the car, driven by Khalid Masood.
Neighbours described him as a “lovely man” who was “as fit as a fiddle”.
Philip Williams, 61, said Mr Rhodes was unmarried and had no children.
He said: “We’d known him for 24 years. He was a lovely man. He would do anything for anybody. And it’s such a shock.
“You know, it’s a crime that he’s been taken.”
Mr Williams said other neighbours who went to see Mr Rhodes before he died thought he had been visiting the hospital and was coming from or going to a bus stop when he was run down.
He said: “I’ve been told he was at the hospital, St Thomas’s, and he went by public transport and he was apparently crossing the bridge when this car hit him.
“As I say, I’ve been told he was hit in the midriff. He had many broken bones. Apparently he went into a coma straight away.”