Joseph Peloe opened the door to his killer at his Speke home
Police are trying to trace a man seen talking to the victim of a fatal shooting in Liverpool, only minutes before he was targeted.
Joseph Peloe, who would have turned 50 on Tuesday, was shot when he opened the door to a gunman on 28 December 2004 at his home in Little Heath Road in Speke.
Officers want to speak to a man seen talking to Mr Peloe outside his house about 30 minutes before he was shot.
Merseyside police are offering a £10,000 reward for information.
Mr Peloe staggered to nearby Speke police station after he was shot in the chest.
He was given first aid by an officer but died in hospital later.
Det Supt Ian Mulcahey, of Merseyside police, said: "We would particularly like to speak to the man who was with Mr Peloe outside his home on the night of his death.
"We firmly believe that the answers lie within the local community and someone knows who is responsible for this terrible act, which has left a family devastated.
"It's not too late to search your conscience and come forward."
Two men were charged with Mr Peloe's murder but later acquitted at Liverpool Crown Court on the judge's directions.