A teenager who stabbed a good Samaritan to death in a row over a mobile phone has been jailed for life for his murder.
Liam Attwell died three days after being stabbed
Brian Grady, from Bristol, denied murdering Liam Attwell when he tried to intervene in a mobile phone robbery in the Canon's Marsh area of the city.
The 25-year-old chef suffered a single stab wound to the chest in the attack on 3 October last year, and died three days later in hospital without regaining consciousness.
After the verdict was announced, a judge at Bristol Crown Court lifted an order banning 17-year-old Grady's identification.
The jury had heard Grady was part of a small group on bikes who bullied, intimidated and robbed three teenage boys from Wiltshire, threatening one of them with a knife.
They were told that when Mr Attwell saw what was happening he stepped in, allowing the teenagers to escape, but was himself attacked by the gang.
Grady had claimed Mr Attwell ran onto the knife during the argument.
But, sentencing Grady to be detained at her majesty's pleasure with no prospect of a review for at least 11 years, the judge rejected this claim.
"Liam Attwell's death was no accident - you meant to stab him," he said.
"It shows the danger of immature young lads like you going out armed with a knife, and I do not think you are genuinely sorry."
He added: "Liam Attwell died courageously, doing his duty as a citizen - he will not be forgotten."
On hearing the verdict members of Grady's family ran out of court crying and shouting.
Outside court Mr Attwell's mother, Roisin Reddick, said: "It's not a story about two boys - it is actually life for kids in this city.
"I will never regret what Liam did, I just regret that he's not here anymore.
"If he had seen Brian being attacked by a gang of youths he would have stepped in to help."
Detective Chief Inspector Neil Smart, of Avon and Somerset Police, said he was pleased with the sentence and that the case should come as a lesson on the dangers of carrying knives.
He said: "Knives ruin lives. It's quite clear that if anyone carries a knife in their pocket they may be alerted to use it."