Gardaí believe that a granddad who died after being hit by a van in Tallaght had earlier fired shots at a house as part of a bitter dispute that escalated after a social gathering, the Herald can reveal.
An investigation was continuing last night into the death of Dan O'Reilly, of Daletree Court, Ballycullen, south Dublin, who was pronounced dead at Tall-aght Hospital after being run over at Tymon Road North just after midnight yesterday.
A Tallaght man in his early 30s, who is closely related to Mr O'Reilly, who was aged in his late 50s, was still being questioned last night about the hit-and-run death.
"Both the victim and the arrested man had been earlier at a family gathering - understood to be a christening - in the location where the incidents happened," a source told the Herald.
"A row broke out between them, and gardaí suspect Mr O'Reilly fired a number of shots at the house in the course of this dispute, but no one was injured from the shooting.
"A number of people were present when this happened and it is suspected that the arrested man left the scene and came back in a van and ran over the victim before fleeing the scene."
The white Ford Transit with a 08 registration was later found by gardaí at nearby Tymonville Gardens and the suspect was arrested nearby.
It is understood that a number of children were present when shots were fired and the victim was run over.
Mr O'Reilly was taken to Tallaght Hospital with serious injuries and was pronounced dead in the early hours of yesterday.
The scene at Tymon Road North remained sealed off yesterday morning.
Broken glass, which appeared to have come from a vehicle, could be seen at the scene.
The second scene, not far away in Tymonville, was also sealed off in the area around the van.
The left front passenger wheel of the van was flat and the rim badly dented, and there was heavy damage to the front of the vehicle.
The driver's window appeared to have been rolled down or smashed.
Local residents at Tymon Road North reported hearing loud bangs and people shouting and screaming at around midnight.
There were other reports that there had been a gathering or a party at the house earlier in the day.
"We heard the bangs and thought they were bangers. They echoed off all the walls," said one resident.
Another said: "There was a woman screaming too. It was clear there was something wrong, and down the road there was a crowd gathered to help the injured man.
"Someone said they heard a man had been run over."
A video circulating on social media, and believed to have been filmed at the scene, contains shouting and screaming, and three loud bangs can be heard.
A large number of people gathered yesterday at Mr O'Reilly's house in Daletree, but the family did not wish to comment.
Gardaí used a drone to record the scene as members of the technical bureau carried out searches.
They collected a number of forensic samples, including a white T-shirt.
Neighbours said the man who was arrested had lived at the house for a few years with his wife and three children.
"Gardaí at Tallaght are appealing for any witnesses to this incident to come forward," a spokesman said.
Gardaí are particularly interested in a dark hatchback car that was seen leaving the area around this time.
Earlier, officers had described the violent scenes in the housing estate as a "serious incident" in their first appeal for information.
Mr O' Reilly was not known to officers for involvement in crime, but sources said some of his associates have links to a notoriously violent burglary gang.