North Wales Police say they now know the motive behind the murder of a postman while on his round in Mold exactly two years ago.
Paul Savage was killed as he delivered mail in Mold
Father-of-one Paul Savage, 30, died in hospital on 4 February 2003 after he was attacked by two men on the outskirts of the town.
But while detectives say they believe they now know the motive, they are not prepared to disclose details.
Speaking on Friday, Det Ch Insp Paul Loftus said the killers will be caught.
"I believe this inquiry is moving towards a successful conclusion," he said.
He believes that apart from those directly involved in the attack, up to 10 people in and around Mold have evidence which could prove useful to the inquiry.
Mr Savage's body was found in the driveway of a house
"The attack was cowardly and Paul Savage was a defenceless victim," he added. "These murderers need to be brought to justice for the sake of Paul's family and also for the decent citizens of Mold.
"This murder is a stain on the community."
Mr Savage, originally from Sale in Greater Manchester, died in Wrexham Maelor Hospital from head injuries.
He had been struck on the head several times with a wooden baton and was found lying in a pool of blood on the driveway of the home of Flintshire County Councillor Ray Dodd.
Mr Savage's mother June White said she remembered her son privately on Friday morning before visiting the spot where he was attacked on Clayton Road in Mold.
"This morning I did a walk as I did last year. I went out about quarter to seven to get the feel of what it's like in the dark, to see shadows in the hedges," she said.
"He was murdered around seven in the morning and I wanted to see what it was like in the dark.
"I'm going to take some tulips to the cemetery in Cheadle and I've got roses for Mold at Clayton Road.
"Everybody has moved on with their lives but not me. I won't have this as a fruitless quest," she added.
Despite a detailed reconstruction, Royal Mail's £25,000 reward and intensive efforts by police to trace the killer, the murderer has never been caught.