A 23-year-old woman has been arrested in connection with the investigation into the fatal shooting of Dublin dad-of-two John Gibson.
Gibson, 28, was shot in the head as he sat in his car close to Citywest Shopping Centre in September 2017.
The dad-of-two from Lucan had parked his car on Fortunestown Lane when the gunman struck before fleeing.
A white Volkswagen Caddy was later found burnt out near the scene.
Man, 22, arrested in connection with fatal shooting of father-of-two John Gibson
A man, 22, who was arrested in connection with the investigation on Monday has been released without charge.
A garda spokesman said: "A 22 year old man arrested on Monday 25/3/19 in connection with a fatal shooting in Tallaght on 18/9/17 was last night released without charge.
"A file will now be prepared for the information of the Director of Public Prosecutions.
"A 23 year old female was arrested last night 26/3/19 in connection with this investigation, she is currently detained at Tallaght Garda Station under the provisions of Section 30 – Offences Against the State Act 1939."
