Mark Nash has been found guilty of murdering two women in Grangegorman in Dublin 18 years ago.

The 42-year-old, who used to live at Prussia Street and on Clonliffe Road in Dublin, had denied stabbing 59-year-old Sylvia Shiels and 61-year-old Mary Callinan to death while they slept in their beds.

The jury returned a unanimous verdict of guilty on both charges.

Nash, who is originally from England, is already serving life in prison for murdering his ex-girlfriend's sister and her husband in Roscommon - also in 1997.

When arrested for those murders he admitted to the Grangegorman killings, but later withdrew his confession.