The Coroner described the killing as one of the most grotesque and brutal he had ever come across.
The inquest heard that 44-year-old Eamon Collins had been stabbed 20 times in the face and head with a heavy weapon, possibly a bayonet.
His body was found by a roadside outside Newry in January 1999.
A former RUC Detective who investigated the killing said no-one had ever been charged in relation to the murder.
However, he said he believed members of the IRA from south Armagh had been responsible.
Eamon Collins had been a member of the IRA but left the organisation and later wrote a book detailing his experiences as a Republican paramilitary.



















