Gardaí have arrested two men in connection with the investigation into the murder of Gerry Nolan.
Mr Nolan died following a fire at his caravan home in Deerpark, Castlecomer, Kilkenny on July 24th 2006.
The matter was fully investigated and five people were arrested - but no charges were preferred.
The case was reviewed in 2014 and a murder investigation was launched.
The two men arrested Thursday morning - aged 27 and 30 years - were detained in the Dublin area.
They are both currently being held at Kilkenny and Thomastown garda stations under Section 4 of the Criminal Justice Act.
Gardaí investigating this murder are appealing for witnesses or anyone - particularly those living locally in the Castlecomer area who may have information regarding this incident - to contact them.
They can do so at Kilkenny garda station on 056-777-5000, the Garda Confidential Line at 1800-666-111 or any garda station.