GERRY ADAMS was accused last night of "hiding in the Dail" to avoid questions about the IRA's murder of mother-of-10 Jean McConville.
The Sinn Fein president is coming under increasing pressure to explain his personal involvement in Provo executions after further revelations of his role from a close ally.
Former IRA bomber Dolours Price described how Mr Adams ordered her to ferry captives, including Ms McConville, across the Border to be murdered.
Ms McConville was the most notorious of the cases of the so-called Disappeared, victims murdered by the IRA and whose bodies were then hidden south of the Border.
Ms McConville's son-in-law, Seamus McKendry, said the family always believed Mr Adams was implicated.
"He is a member of Dail Eireann. He can't just hide away down there saying 'I'm Mr Respectable now'. He has a lot of questions to answer," he said.
Mr McKendry repeated his call for Mr Adams to be arrested over the allegations and evidence gathered.
He said Ms Price's version of events were not a surprise and tallied with his own information on Mr Adams's role.
"I have been told from day one that Gerry Adams was involved. I don't doubt it," he said.
"I don't want him hiding under the mantle of being a member of the Dail," he added.
Ms Price's allegations back up the claim of another former IRA member, Brendan 'Darkie' Hughes, implicating Mr Adams in Ms McConville's murder.
Mr Adams continually denies being a member of the IRA and also rejects allegations he was involved in Ms McConville's murder.
But he is also coming under increasing political pressure to explain his IRA role.
Fine Gael parliamentary party chairman Charlie Flanagan said Mr Adams had to make a Dail statement this week on the fresh claims he was personally involved in IRA bombings and executions.
Mr Flanagan said he had to answer the charges the "abduction, murder and disappearance" of Ms McConville.
Fianna Fail leader Micheal Martin has rejected calls from the DUP for the Government to apologise for IRA atrocities.
But he did suggest the DUP speak directly to its partners in the current Northern Ireland government.
"It could ask First Minister Martin McGuinness to tell the truth of the IRA under his command.
"It could demand that Sinn Fein leader Gerry Adams account for his tenure on the Army Council of the IRA and ask him to answer the charges made by Brendan Hughes regarding the abduction, murder and disappearance of the body of Jean McConville," he said.
Ms Price linked Mr Adams directly to the murder of Ms McConville and said it was normal for the Sinn Fein leader to order her to drive victims south of the Border.
"The hardest thing I ever did was drive those people away and deliver them to a group of people across the border. I never knew for sure their ultimate end.
"I was simply told by Gerry Adams to take the people away, a couple of lads or whatever. Some I knew their fate, some I didn't," she said in an interview at the weekend.