Brian Templeman, 49, was fatally stabbed in the street in Peckham, south London, on Wednesday 10 October 2012.
He was found injured outside a hostel in Peckham Road near the junction with Talfourd Road at around 2.30pm.
Mr Templeman died in hospital in the early hours of the following day. A postmortem gave the cause of death as a stab wound to the spleen.
On October 12 police charged Eddie Hepburn, 44 [5/11/67], of Peckham, with murder. He went on trial at the Old Bailey on 6 June 2013.
The prosecution case was that Hepburn stabbed his friend in the side during an argument in the street outside Hepburn's home. Mr Templeman may have believed that Hepburn was involved with his girlfriend.
Jurors heard Hepburn threw the knife over a wall as he ran from the scene. Hepburn's dog was left sitting by the side of the victim.
Hepburn (pictured right) later confessed to a friend that he had stabbed Mr Templeman in self defence.
On 13 June 2013 the jury cleared Hepburn of murder but convicted him of manslaughter, either on the basis of loss of control or lack of intent to cause really serious harm.
The following day he was jailed for seven years. Hepburn, whose family live in Scotland, had 20 previous convictions for shoplifting and possession of a knife, mainly relating to his drug habit.
Judge Christopher Moss QC said: 'In the course of an argument you produced a knife you had taken to the scene and stabbed him in the side of the body, puncturing his spleen.
'Had you not taken that knife to the scene of the argument, Brian Templeman would not have died.
'The jury rejected your claim of self defence. You used that knife unlawfully and lethally with the result a man lost his life and two daughters their father.'
Mr Templeman was a self employed glazier who came from Birkenhead who had two daughters. His son died in January 2012 after a fight outside a nightclub in Liverpool.