Police in the North have arrested a fourth person in connection with the murder this week of a man on a loyalist housing estate.
Mark Christie's body was found on the Kilcooley estate in the seaside resort of Bangor, Co Down on Tuesday.
The 36-year-old, who was murdered just a week after he escaped going to jail on an assault charge, is believed to have been chased and hacked to death by at least six men wielding machetes and screwdrivers.
The victim, from the Whitehill district of Bangor, had gone to visit his girlfriend.
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It is understood he had been warned repeatedly to keep away from the Kilcooley estate, which is controlled by the Ulster Defence Association and the Ulster Volunteer Force paramilitary groups.