Mr Singleton was shot in front of his girlfriend
Five years after a man was murdered in front of his girlfriend and their three-year-old son, police are making a fresh appeal to catch his killer.
Peter Singleton, 26, was shot by a masked gunman on Column Road in West Kirby, Wirral, on 27 March 2003.
Two men were seen leaving the scene in a white Vauxhall van, which was later found burnt out in Carr Lane, Moreton.
Police have re-released an efit of a man they are keen to speak to in connection with the killing.
They also want more information about the Astra van, which was using false registration plates - number KP52 XGD. The plates had a green band around the edge.
An image of one of the men wanted in the inquiry has been released
Police are appealing to traders to find out where the plates were made up in order to trace the person who used them on the van.
The van was seen driving off along Grange Cross Lane after the murder.
Some time later, two young men wearing dark clothing were seen entering Westry Close from the footpath from Carr Lane, Moreton, before they ran off in the direction of Millhouse Lane.
Det Chf Insp Ian Mulcahey said: "We are certain that Peter was targeted specifically, and we need the assistance of the public to help us with the inquiry.
"Anyone who thinks they can help should be reassured that every piece of information is investigated and no piece of evidence is too small.
"It enables us to continue to build a picture of what happened that night, and help us track down and arrest Peter's killers."
Anyone with information is urged to call Crimestoppers.