The man found dead in Co Down yesterday afternoon has been named as Bobbie McKee.
Mr McKee's death is the subject of a PSNI murder investigation.
He was found dead in his home in Kilkeel by police officers who called after concerns were raised for the couple who lived there.
His wife Yvonne, who suffered serious head injuries, is being treated in hospital. She is said to be in a stable condition.
A 25-year-old man has been arrested on suspicion of murder and attempted murder.
It is believed all three people involved may be related, and the matter is being treated as a domestic incident.
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The family is well known in the coastal town and the incident has caused deep shock in the close-knit community.
Mr McKee is the brother of former unionist MLA and councillor Harold McKee, who had stood for the Traditional Unionist Voice in last year's local government elections.
TUV leader Jim Allister issued the following statement: "The tragic and violent death of Bobbie McKee and the severe injuries to his wife have rightly caused widespread shock.
"Bobbie McKee was much respected throughout the Mourne community. The circumstances of his death binds the community in grief.
"My thoughts and prayers and those of my party are with his immediate family and dear wife. We particularly think of his aged mother and our colleague, his brother Harold. May the God of all comfort be near to them through this terrible time."
Police inquiries are continuing, but detectives say a firearm was not used to inflict the injuries on the couple.
Police have appealed for witnesses to come forward.
