A man in his The 60-year-old who were found dead in a house in Balbriggan, north County Dublin, were seriously injured, Gardai (Irish police) said.
They said they were carrying out a criminal investigation following the discovery of his body in a house in Dun Saithne Green on Wednesday afternoon.
A po an autopsy to determine the cause of death is performedThursday afternoon.
Gardai has appointed a family liaison officer to keep relatives informed.
Officers lead the door to door investigations and verification of the video surveillance.