A £5,000 reward is on offer for information leading to the arrest and conviction of the man who stabbed a 26-year-old self-employed labourer to death in August last year.

Paul Wright, 26, was stabbed when he was involved in an argument between a group of youths at the junction of Garth Road and Cloister Road, in Cricklewood, after a night out with friends in The Castle pub in Finchley Road, Golders Green.

In September, Scotland Yard released a photo of 21-year-old James Anderson, who they want to question about the murder of Paul Wright.

Police believe Mr Anderson, a nightclub bouncer, is still in London and may hold vital information about the murder.

They are appealing to him or anyone who knows his whereabouts to come forward.

Although Mr Anderson is known to have been seen there since the murder, he has failed to contact the police, despite previous appeals for him to come forward.

Mr Wright was found lying in the street at 11pm on August 17 and he died in the Royal Free Hospital one hour later.

A post mortem confirmed the cause of death was stab wounds.

His grandmother Peggy Foskett fought back tears at the time as she described her grandson. "He was a hard-working labourer who didn't have a bad word to say about anybody. He was a lovely lad and I can't believe this has happened," she said.

Detective Chief Inspector David Cater, who is leading the investigation, said Mr Anderson could be dangerous and anyone who sees him should dial 999, the murder squad on 020 8358 1864 or Crimestoppers anonymously on 0800 555 111.