Detectives are trying to trace a London man in connection with the murder of a father in Southampton.
Michael Freshwater, 49, a former boxer, was found stabbed to death in his flat in the city in April after a dispute at the property.
Today, Hampshire police released a photograph of Kevin Suika, 23, who has links to Holloway and Bromley, and called for help in finding him.
The appeal on BBC’s Crimewatch came as Crimestoppers offered a £10,000 reward for information leading to the arrest and conviction of the killers.
Twelve arrests have been made in connection with the investigation, including a 16-year-old held on suspicion of conspiracy to murder and conspiracy to supply class A drugs.
Detectives describe Mr Suika as black, 5ft 7in tall and of proportionate build, with a tattoo on his left arm that says “Work like a slave, eat like a king”.
Last month, Jenny Downey, Mr Freshwater’s partner, said: “I feel so lost… I still can’t accept he’s gone.”
