A man arrested in Dublin as part of the investigation into the murder of Michael Devoy, who was shot dead in Dublin in January 2014, has been released from custody without charge.
A file is being prepared for the Director of Public Prosecutions (DPP).
The man, in his mid 20s, was arrested in Dublin city centre on Thursday morning and was detained at Tallaght Garda station.
Devoy, of Balbutcher Driver, Ballymun, north Dublin was wearing a bullet-proof vest and was shot in the head and neck with a handgun on January 18th, 2014.
Released from prison a day before the shooting, he had been warned his life was in danger.
His killers were attempting to dump his body by the roadside at a remote location on Foxhill Road, off Bohernabreena Road, near Tallaght, west Dublin, at about 10.45pm on the night of the killing when detectives on a routine patrol saw a parked car and went to investigate.
As they did, two men appeared at the back of the parked vehicle and jumped into it before speeding from the scene.
The Garda car pursued but lost the vehicle and then returned to the spot where the pursuit had begun.
They found the victim’s body on the ground just off the road. Gardaí believe the men they disturbed were about to throw Devoy’s body over a nearby wall with a large drop on the other side in an attempt to conceal it.
They think he was most likely killed at the scene after being lured to meet the men or perhaps had been abducted.
Michael Devoy was a career criminal who was involved in gangland crime and had about 70 convictions.