Máirtín Ó Murchadóttir, who is charged with murder, is to stand trial in Ireland next month.
She is charged in connection with the death of Ms Liffeys boyfriend, Mr Ó Moirse, who was shot in front of his wife, her daughter and her family at their home in Co Mayo in 2015.
Ms Ó murchadáttir has pleaded not guilty to the murder charge.
“I want to say thank you to everyone who has supported me in this journey and I thank you for your support and for all of the support you have given me during my time in the public eye,” Ms Ó said at the start of the trial.
“This is a long road and I know it will be difficult for me to share with you all the highs and lows of my life in my trial.
But I know that this is what I am trying to do, and I look forward to sharing with you the highs as well as the lows.”Ms Murchdóttab is a native of Derry, Northern Ireland.
Her father is the former Irish Minister for Justice, Ms Murchab said.
The trial is expected to last several weeks.