Michael O'Callaghan killers 'known to people in West Belfast'
People in the community know who murdered a father of five in West Belfast over 15 years ago, police have said.
Michael O'Callaghan, 39, was stabbed to death during a house party at Norglen Parade on March 13 2000.
No one has ever been charged with the killing which is being reviewed by the Police Service of Northern Ireland's legacy investigation branch.
Launching a fresh appeal for information, Detective Chief Inspector Peter Montgomery said: "There are people out there who know what happened and we know they have information which could help us bring people before the court."
Police were called to the scene at 12.34am on Sunday March 13 after receiving a telephone call from a distressed woman.
When officers arrived they found Mr O'Callaghan lying in a pool of blood. He had been stabbed in the chest.
Two men and a woman were arrested as part of the original murder hunt but were not charged.
Anyone with information is asked to phone the non emergency 101 number or call detectives on 07585 228283.