Gardai continue to question two males in their twenties following the death of 29-year-old father-of-one Vincent Maher in the early hours of yesterday at a party in his apartment in Dublin.
The unemployed painter from the Finglas area was discovered after three men were seen running from the Springmount Apartment complex on Wellmount Road, where Mr Maher lived on his own, neighbours said.
A neighbour, who did not want to be named, said he had been woken at around 4.30-5am by shouting and thumping noises.
He said: "I was woken a few times during the night. It started around 10. It was just a regular party but then there was shouting like, 'You better pay for that... you better f***ing pay for that.' Then there was a few thumps, loud thumps.
"But it was like the party went on after that for a while.
"Three fellas jumped over the gate (at the entrance to the apartments) and ran away but that was later."
The neighbour described the victim, who is understood to have suffered at least one stab wound to the heart, as a "decent guy, quiet like".
Mr Maher had no known criminal connections, though it is understood he had minor convictions for disorderly behaviour. The neighbour said Mr Maher had separated from his partner some years ago but was very close to his daughter and his own family, who live in Finglas.
The alarm was raised after Mr Maher's landlord was alerted at around 10am yesterday and went to the apartment. Gardai said they received a report of the death at 11am.
State Pathologist Dr Marie Cassidy attended the scene and a post-mortem examination was later carried out.
Details of preliminary post-mortem results have not been released for operational reasons.
Last night gardai arrested two men in Finglas. The men, both aged in their 20s, were detained under Section 4 of the Criminal Justice Act, 1984 at Finglas Garda Station for questioning.
Yesterday's stabbing followed another incident in the Tallaght area of Dublin, in which three people suffered stab wounds during a row in the Ard Mor estate at around 1am on Friday.
Violence broke out after an argument at the door of the house, locals said. One man received a slash wound to the head, hand and arm. A woman was also stabbed in the breast and arm and another man was stabbed in the head.
The three, who are all aged in their 30s, were treated in hospital and discharged later in the afternoon.
The violence outside the house happened in front of neighbours and local children, who fled in terror when injuries were inflicted with a meat cleaver.
Gardai later questioned a man in his 50s, who was at the scene.
Gardai are continuing to appeal to anybody who may have attended a party in the apartment between 8pm on Friday evening and 7am on Saturday morning to come forward.
In addition Gardai would also like to speak to any Taxi drivers who may have collected passengers from this location to contact the Incident Room at Finglas Garda Station on 01-6667500, The Garda Confidential Line 1800 666 111 or any Garda Station.