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.
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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.