Gardaí this morning carried out six searches across Wicklow and Dublin as part of their investigation.
A man in his 40s has been arrested in connection with a shooting in Wicklow on December 14th.
Clinton McCormack died following the incident at a building site in Delgany, while a teenager suffered injuries.
Gardaí this morning carried out six searches across Wicklow and Dublin as part of their investigation.
The man arrested is being detained at a Garda Station in the Eastern Region, where he can be questioned for up to 24 hours.

Housing Dept. Unable To Publish Latest Homeless Figures Due To Industrial Action
Motorway Toll Price Hikes Announced For January
Gardaí To Engage In Work-To-Rule During EU Meetings Next Month
Kfm's Local Hero 'Sitting Room' Shines At Irish Music Month National Finale
Tánaiste Won't Be "Pointing Fingers" After Anonymous Comments About Culture Minister
Funeral Of Renowned Musician Dónal Lunny To Take Place In Newbridge This Saturday
"Strong Possibility" Of Attack At Upcoming EU Meetings In Dublin, Says Gardaí
Two Sinn Féin TDs To Be Questioned Over Garvaghy Road Protest