Detectives investigating the 2011 murder of Vitalijs Janovics in Bermondsey have issued new information concerning his last known movements.
A reward of up to £20,000 for information leading to the identification, arrest and prosecution of those responsible for the murder also remains available.
Police and London Ambulance Service were called at around 1.10am on 22 July 2011 to reports of an injured man in Jamaica Road SE16.
Mr Janovics, aged 38 of Long Lane SE1, was taken by ambulance to King’s College Hospital, where he was pronounced dead shortly after arrival.
He had suffered a single stab wound to his heart.
On Wednesday 2 April a team of detectives from the homicide and major crime command, led by Detective Chief Inspector Nicky Wall, and the local neighbourhood policing team will be out conducting house-to-house inquiries and distributing leaflets in the hope new information/witnesses will come to light.
DCI Wall said: “We know that Mr Janovics arrived at Bermondsey underground station shortly before midnight and went into the Payless Food & Wine store on Jamaica Road where he purchased alcohol and cigarettes.
“He then waited around to use a nearby ATM machine and at about midnight walked towards Thames Path and Bermondsey Wall East – I now believe this is where he was stabbed.
“I also believe it is possible Mr Janovics did not realise he had been wounded as he returned to the Payless Food and Wine store where he attempted to purchase more alcohol before becoming unsteady on his feet and collapsing in Jamaica Road.
“My aim is that this new information will trigger someone’s memory of something they may have witnessed on Bermondsey Wall East that night and perhaps thought it was not serious enough to be connected to a murder.
“I would urge you to contact the incident room or Crimestoppers with any information you may have.”
Police are asking anyone with information to call the Incident Room on 020 8785 8963; or to remain anonymous call Crimestoppers on 0800 555 111.
Kai Taliana, then 19, of Vauban Estate, SE16 and Khaled Ait-Said, then 19, of Guinness Court, Mansell Street, E1 were found not guilty of murder at the Old Bailey on 17 October 2012.