Convicted killer Mark Nash has lost his claim for damages for what he claimed was the delay in prosecuting him for the murder of two elderly women in Grangegorman in 1997.
Nash is serving a life sentence for the murders of 59-year-old Sylvia Shields and 61-year-old Mary Callanan at their sheltered housing in Grangegorman in 1997.
He was previously convicted of the murder of two people in Ballintober in Co Roscommon, also in 1997.
Nash was convicted of the Grangegorman murders in 2015.
The Supreme Court upheld the High Court's finding that he was not entitled to damages.
It ruled it was not satisfied there was any culpable delay on the part of the investigating or prosecuting authorities.