Detectives are offering a £20,000 reward for anyone who can help provide clues to the murder of a man in Hendon – despite already charging four people.
Zyrdunas Laurinavicius was killed by a single stab wound to the chest in Parson Street, Hendon, on Thursday, July 3.
Bruno Guimaraes, of Carnarvon Road, East London, Marlon O’Brien, of Beckton, Terngu Agera, from Newham and Terae Eusebe, from Upton Park, have already been charged with his murder.
Two teenage girls aged 16 and 17 and a 19-year-old man have all been arrested in connection with the murder and bailed until September.
Police say the large reward will be offered to anyone who can offer information leading to the identification, arrest and prosecution of anyone responsible for his murder.
Meanwhile, officers are also looking to trace Stephen Lansana, of Canning Town, who they believe could hold vital information about his death.
The 21-year-old should not be approached and if seen, members of the public are advised to call 999.
Detective Inspector Mark Lawson, of the Homicide and Major Crime Command, said: "I would like to speak with anyone who has seen Stephen Lansana over the past three weeks. It is urgent that we find him and any piece of information, however small, could be the lead we require to find him."