Sam Hallam's murder conviction was quashed today after the discovery of photographic evidence on his mobile phone which could have helped his defence case.
Sam Hallam, 24, was at the Court of Appeal - after being dramatically freed on bail - to hear three judges announce that his conviction was "unsafe."
Mr Hallam spent more than seven years behind bars insisting he did not murder trainee chef Essayas Kassahun, 21, who died after being attacked by a group of youths on the St Luke's estate in Clerkenwell, London, on October 11 2004.
He lost an appeal in 2007, but he and his mother Wendy and dozens of supporters packed a London courtroom to hear Lady Justice Hallett, sitting with Mr Justice Openshaw and Mr Justice Spencer, give the court's reasons for overturning the conviction, which was referred by the Criminal Cases Review Commission
Mr Hallam, of Hoxton, east London, who was found guilty at the Old Bailey in October 2005 and was serving life with a minimum term of 12 years before he was freed by the appeal judges, won his challenge in the light of new evidence relating to his own 3G telephone.
The judges said that for "reasons that escape us", two telephones in Mr Hallam's possession at the time of his arrest were not investigated by the police or his then defence team.