A man who alleges to have been raped by an IRA member says Gerry Adams is lying about the murder of Brian Stack.
Paudie McGahon says he knows from personal experience that Sinn Féin does not tell the truth about criminal investigations.
Mr McGahon claims Sinn Féin was involved in a cover up after he was sexually abused by a member of the IRA in the 1990s.
He now wants the Sinn Féin leader to publicly reveal the name of the IRA member that could be implicated in the murder of prison officer Brian Stack.
He has offered his support to Brian's son Austin.
"[I'm] 100% behind the Stack family, and Austin, and his brother," he explained. "I just think he's an incredible witness [...] He has the neck to do it, and fair play to him."
He told Newstalk Breakfast this morning about his own experiences and the associated Garda investigation. He explained his life is "up and down".
"I have a good wife, and three lovely children, and that keeps me stable," he said.
"But when you walk the streets or go for a sociable drink, and we'll say members or friends of Sinn Féin are hurling abuse at you - vile, vile comments [...] You sit there and you have to take this abuse, because you went public and you don't go public without expecting some abuse. I take what I can.
"I have people that I know are members of Sinn Féin and they're 100% behind me. But you have the vile ones who will hurl abuse at you."
Returning to the Stack controversy, he argued: "[When I saw] Gerry Adams' speech... only that I love the TV I have in the living room I would have kicked the TV in. But they have absolutely no respect for the general public. 'Push it under the carpet, this will go away'. If Gerry Adams was to jump into a slurry put, he'd jump out smelling of roses."
He concluded by urging Austin Stack to keep going.
"It's hard. It's not easy. I had some tough times over the last 18 months. I shed enough tears. But as I said I grew a bigger backbone than I had.
"I would say to Austin: tiocfaidh ár lá lad, our day will come."