The trial of Brendan O'Donnell opened in the Central Criminal Court on January 16, 1996, before Judge Vivian Lavan, and would become the longest criminal trial in the history of the State up to that day, lasting 53 days.
Dressed in a green anorak, blue shirt and tie, and denim jeans, O'Donnell pleaded not guilty to 12 various counts - including murder, kidnapping and possession of a stolen rifle.
"You will be satisfied that they were ritually slain," prosecutor Kevin Haugh SC said of O'Donnell's victims, "and the applicable verdict is murder".
Paddy McEntee SC, for the defence, set out to prove to the jury that O'Donnell was insane during his rampage through Clare and Galway that week in 1994.
But the jury of six men and six women agreed with Mr Haugh that O'Donnell was "a cute, cunning, thinking, rational, clever self-interested liar" when it returned its verdict on April 2, convicting him on all counts relating to the murders of Imelda Riney, her son Liam and Fr Joe Walsh and the abduction of schoolgirl Fiona Sampson and farmer Edward Cleary, who wrestled the gun from O'Donnell at the garda checkpoint where he was eventually arrested.
Brendan O'Donnell died in the Central Mental Hospital in July 1997, after a rare reaction to an anti-psychotic drug.
He was 23.