A 23 year old woman arrested on March 26 as part of the investigation into the murder of John Gibson has been released without charge.
She was detained at Tallaght Garda Station under Section 30 of the Offences Against the State Act 1939. A file will be prepared for the Director of Public Prosecutions.
Two men remain in custody.
Update 2.30pm: A 29-year-old man was arrested today in relation to the fatal shooting in Citywest Shopping Centre on the 18 September 2017.
Earlier: A 23-year-old woman has been arrested as part of the investigation into the murder of a man in West Dublin in 2017.
Father-of-two John Gibson died after being shot a number of times at Fortunestown Lane in Tallaght on September 18 that year.
A 22-year-old man who was arrested on Monday in connection with the shooting has been released without charge.
A file will now be prepared for the information of the Director of Public Prosecutions.
Investigations are continuing.