Police are hunting for a man in connection with their investigation into the murder of a clubber at a wine bar in north west London.
Shane O'Brien, 27, is wanted for questioning after 21-year-old Josh Hanson was stabbed to death at RE Bar in Eastcote, Harrow during the early hours of Sunday morning.
Detectives have said they believe his attacker stabbed him in the neck with a sharp implement before fleeing in the "chaotic" aftermath, as shocked revellers looked on.
Releasing a picture of Mr O'Brien today, police described him as white, 6'0" and of muscular build. He lives in Ladbroke Grove, but is also believed to have links to Ruislip.
Detective Chief Inspector Noel McHugh, who is leading the investigation for the Metropolitan Police, said: "We are very keen to speak with Shane O'Brien as part of our ongoing enquiries.
"I would appeal directly to Shane to contact us, or ask that anyone who has seen him or who knows where he is to contact us as well.
"We have had a positive response to our appeal but are still appealing to anyone who was in the RE bar between midnight and the time of the incident and has not yet contacted us to get in touch."
Anyone with information can contact police on 020 8785 8099 or speak to Crimestoppers anonymously on 0800 555 111 or via crimestoppers-uk.org.
