DETECTIVES investigating the murder of border butcher Robbie Lawlor in Etna Drive in north Belfast on Saturday, April 4, have arrested a 36 year old man on suspicion of murder.
The male was detained last night and remains in custody at present.
Three people who were arrested by detectives investigating the murder of a man in north Belfast on Saturday were released unconditionally on Monday.
Lawlor, 36, who was from Dublin, was shot outside a house in Etna Drive in Ardoyne.
He had been a suspect in the abduction and murder of teen Keane Mulready- Woods in January in the Republic. His body was dismembered but his torso has never been found.
It is believed Mr Lawlor was a leading figure in a feuding criminal gang.
Two men aged 30 and 33 and a 17-year-old boy who were being questioned about his murder have been released unconditionally.
On Monday, a 27-year-old man was also released unconditionally.
The PSNI believes a lone hitman shot dead Lawlor.
On Sunday, properties in west Belfast and Crumlin were searched by police.
But officers said they had not yet recovered the murder weapon.