Mairia Cahill has called on Gerry Adams to resign as leader of Sinn Fein and claimed her grandfather recruited him into the IRA.
Speaking on Newstalk this morning, Ms Cahill was responding to Adams' statement last night which he admitted he regrets how the IRA dealt with rapists and also Mary Lou McDonald's interview with the radio station.
She also responded to an interview with Mary Lou McDonald which aired on the show this morning.
Last night the Sinn Fein president admitted that the IRA carried out 'kangaroo court' investigations into sex abuse allegations and punished sex offenders, his first admission of IRA involvement in such cases.
In a BBC Spotlight documentary, Ms Cahill (33) said she was interrogated by an internal IRA inquiry when she alleged a senior member of the organisation repeatedly raped her when she was 16-years-old. She also said she met Mr Adams and discussed her allegations.
"I cannot continue to do this over and over and over," she said. "They owe every victim an apology."
"We need the truth to be told on the issue and I can't say it strongly enough."
"I think it's shameful and shocking."
Ms Cahill also said that Mary Lou McDonald's position that she believed Adams when he said he has never been a member of the IRA undermines her own credibility.
"Her credibility is tainted by default. I know Gerry Adams was a member of the IRA. My grandfather recruited him into what was termed the Community Organisation. That is a matter of record."
"I have family members who were also in the IRA who would have confirmed this."