A 24-year-old man arrested in connection with the murder of father-of-two Vincent Parsons in Tallaght last weekend has been released without charge.
A file is now being prepared for the Director of Public Prosecution, a garda spokesman said.
Mr Parsons (34), from Clondalkin, was attacked on Saturday night while he was socialising with friends in Killinarden. He died on Monday.
He was in the Killinarden Public House on the night in question when an altercation occurred. It continued outside the premises after which Mr Parsons left on foot. At least two men followed him and he was badly beaten on a roadside outside a Mace shop and a post office.
He was taken to Tallaght Hospital and remained in a critical condition for 48 hours before being pronounced dead on Monday night.
Investigating gardaí are continuing their appeal to the public for information and are appealing in particular to those who were in the vicinity of the pub last Saturday between 10pm and 11pm to come forward.
Anyone with information is asked to contact Tallaght Garda station 01-6666000 or the Garda Confidential Line on 1800 666 111.