A man arrested in connection with the murder of Keane Mulready-Woods has been released.
He was arrested last Thursday and questioned at Balbriggan Garda Station.
He has now been released and Gardaí said a file will now be prepared for the Director of Public Prosecutions.
The Drogheda teenager was brutally killed and dismembered last month, with his partial remains found in separate locations in Dublin.
A second man, also arrested on Thursday, remains in custody at Drogheda Garda Station.