Garda Commissioner offers apology to family of murdered prison officer Brian Stack

The family of murdered prison officer Brian Stack will meet with Garda Commissioner Drew Harris later to get answers over his killing.

Update 11.15am: Garda Commissioner Drew Harris has said he offered an apology to the family of murdered prison officer Brian Stack over "the failings and shortcomings in the investigation".

Mr Stack, who worked at Portlaoise prison, was shot in the neck by the IRA in Dublin in 1983 and died 18 months later.