Khalid Masood (circled) in school photo taken in the early 1980s
The photograph is believed to date from the early 1980s when Masood – who was brought up as Adrian Russell Ajao – was a pupil at the Huntley School for Boys in Tunbridge Wells, Kent.
It shows the terrorist as a teenager surrounded by classmates who admired his talents as a sportsman.
The picture is thought to have been taken during a charity five-a-side football tournament at the school.
Masood is understood to have been a keen footballer and has been described by former pupils as one of the best players in the school.
Schoolfriend Kenton Till, who is also in the photo, told MailOnline: “We were good friends for about three of four years he was very bright, very academic and he was good sports – good at everything really. He was very good at football.
“He wasn’t religious at all. He was a big character, very friendly and a good laugh. He was always being everybody’s mate.
“He might have been the only black kid at the school. He experienced a little bit of racism but not a lot because he always tried to be popular.
“We used to socialise together up until we left school but he turned up to a party at my house with some friends after they had been smoking cannabis and my mum threw them all out. We sort of lost touch after that.
“But he was just a normal kid – good fun to be around. At the time he was good at chemistry and I think he wanted to go into pharmacy or something like that.’
The 52-year-old went on the become a body-building enthusiast.
Masood was born in Dartford, Kent on Christmas Day 1964.
His mother Janet Ajao gave birth when she was 17-years-old.
When he was two, Mrs Ajao married Philip and they brought him up in a £300,000 house in the seaside town of Rye, East Sussex, before moving to Tunbridge Wells.
Get Quotes on Home Insurance