The remains found in the Dublin Mountains over the weekend have been officially identified as those of Kenneth Fetherston.
The 26-year-old father of one from Tallaght in Dublin was last seen at work on 22 September 2009.
The last known sighting of Mr Fetherstone was at Landy’s Industrial Estate, Knocklyon in Dublin.
He had been driving a red Honda Civic car, registration 93 D 44862. The car was found near Gorey, Co Wexford, four days after he disappeared.
Last Sunday his body was found near an area known as Viewing Point on Military Road in Rathfarnham by a member of the public.
A murder investigation has been launched and gardaí are appealing for anyone with information to come forward.