A MAN died after he was stabbed up to eight times in the chest and stomach with a knife during a street row in a Dublin suburb early yesterday.
Victim Colm Lyons was due to celebrate his 21st birthday on Thursday next week.
Last night, gardai were questioning a suspect, also aged 20, at Blanchardstown garda station.
The man was arrested near the scene by gardai shortly after they were called out to investigate the stabbing.
Officers recovered a meat cleaver and three knives from the street and they were taken away for a detailed forensic examination.
The dead man was well known to gardai and had been arrested and questioned by officers earlier this month in connection with a carjacking in which the driver was dragged out of the vehicle and badly beaten.
The driver sustained serious head injuries and was taken to hospital in a critical condition. Inquiries into that attack are ongoing.
The latest incident took place outside a house at Fortlawn Avenue in Blanchardstown around 1.30am.
Mr Lyons, who was also known as Colm Hughes, was walking towards his family home when he became involved in a confrontation with another young man and his girlfriend, who had been arguing outside a house.
The weapons were produced during the confrontation and Mr Lyons was stabbed repeatedly in the body.
He managed to stumble down the road and collapsed less than five yards from his home in Fortlawn Park.
The emergency services were called and he was rushed by ambulance to Connolly hospital where doctors fought to save his life for several hours.
Mr Lyons was pronounced dead around 6am.
His body was found by his mother and sister on the pavement outside a neighbouring house after they received a phone call to say that he had been attacked.
"Colm's girlfriend got a phone call to say he was in trouble. We ran outside and we discovered him at 1.40am lying on the pavement. We just ran around the corner and there he was. His mother was the one who discovered him and there was no sign of life," a family member told the Irish Independent yesterday.
"They restarted his heart seven times but it just kept stopping. He was then brought to theatre where they did some work on his lungs but he passed away. We didn't tell his youngest sister Aine until this morning. He was such a great guy and now he's gone, I'm still in shock," she added.
Mr Lyons is survived by his parents, Rory and Sharron, and sisters Shauna (18), Kelly (16), Cassie (12) and Aine (8).
His father was sentenced to 12 years in jail, with four of them suspended, in 2007 after he pleaded guilty to possession of seven kilos of cocaine for sale or supply in Blanchardstown in September 2004. The court heard he had been running a cocaine mixing plant.
A family friend said Colm had been unemployed for the past two years after struggling to find work in the construction industry.
The suspect was being held last night under section 4 of the Criminal Justice Act and can be held without charge for up to 24 hours, excluding rest periods.
Gardai last night appealed for any witnesses to the incident or those who had been in the Fortlawn area between 1am and 2am yesterday to contact them at Blanchardstown station, tel 01 6667000, or on the confidential line, 1800 666111.