Josh Hanson
Josh Hanson was stabbed to death at the RE bar in Eastcote

Police have arrested a man after he got off a plane at Gatwick Airport on suspicion of assisting an offender in the murder of 21-year-old Josh Hanson at a north-west London bar. Hanson, of Kingsbury in north-west London, was stabbed to death in front of dozens of people at the RE bar Eastcote, Hillingdon, in the early hours of 11 October.

Paramedics fought to save his life but he was pronounced dead at the scene. Detectives are appealing for information about Shane O'Brien, 27, of Ladbroke Grove, who is the focus of their murder investigation. While he has links to the Ruislip area, police believe he could be anywhere in the country and a £10,000 reward is now available for information leading to O'Brien's arrest and prosecution.

The 24-year-old man arrested at the West Sussex airport was on an inbound flight to the UK and has been taken into custody at a London police station.

Detective Chief Inspector Noel McHugh, of the Homicide and Major Crime Command, said: "We are very keen to speak to Shane O'Brien as part of our ongoing enquiries and we believe he could be anywhere in the UK.

"I would appeal directly to O'Brien to contact us, or ask that anyone who has seen him or who knows where he is to contact us as well. I do believe someone out there will know where he is. A substantial reward is now on offer to anyone with information that leads to O'Brien's arrest and prosecution and we hope this will encourage someone to come forward.

O'Brien is described as a white man, 6ft tall and of muscular build. He should not be approached by members of the public and any sightings of him should be reported to police immediately on 999. Anyone with information about his whereabouts can call the incident room on 020 8785 8099 or contact Crimestoppers anonymously on 0800 555 111 or via