The first Sam Hallam heard of the crime that would cost him seven years of his life was when two girls approached him in the street. They told him that they knew what had happened – there had been a street brawl two days earlier in east London involving about 40 people and he had attacked a young man who was now dead. Hallam, then 17 and with no criminal convictions, was bewildered. He hadn’t even been there, let alone attacked the victim, a popular 21-year-old trainee chef called Essayas Kassahun. It worried him enough to ask his brother whether he should talk to the police. His brother told him it was just a groundless rumour, and advised him that there was no need to go to the police but he should steer clear of the area.
It was a week after the incident in October 2004 when four or five police officers turned up at his mother’s flat. He told them that he knew why they were there and that it must be a mix up. He was arrested and taken to Belgravia police station. “That was devastating for me,” Hallam says. But he wasn’t worried about the outcome. He simply wasn’t there. He would explain everything, tell them what he was doing and be released in a couple of hours.