There has been a call for transparency from Sinn Fein after a claim the party knew references had been given for Michael McMonagle last year.
The party has been plunged into controversy over its handling of its former employee who last month admitted a series of offences, including attempting to incite a child to engage in sexual activity.
After leaving the employ of Sinn Fein in 2022, McMonagle went on to work for the British Heart Foundation (BHF) after it did not emerge he was under police investigation.
He had received references from two Sinn Fein press officers who last week resigned. The party indicated that September 25 was the first it knew about the references.
However on Saturday, BHF said it told a senior Sinn Fein official about the references for McMonagle in August 2023.
But DUP leader Gavin Robinson said Sinn Fein’s explanations “have not withstood scrutiny”.
He has challenged Ms O’Neill to make a statement and take questions at Stormont.
“It’s time for full transparency from Sinn Fein. Is the truth being hid or is there a total lack of competence? It’s time for honesty,” he said.
“Sinn Fein explanations have not withstood scrutiny. With every new revelation undermining a previous Sinn Fein position, this issue requires deeper scrutiny.”
McMonagle was first arrested in August 2021.
Sinn Fein has said it suspended him as soon as it became aware of the police investigation, and his employment was terminated in June 2022 when his contract ended.
He went on to work for BHF from September 2022.
On Saturday, the BHF said it is confident it undertook all necessary statutory and moral duties required throughout the entire process.
Ms O’Neill also said that she established on Thursday that in August 2023, following media reports of charges against McMonagle, BHF contacted Sinn Fein’s former HR manager to verify the email address and identity of the senior press officer who had provided the reference the previous year, which the HR manager did.
She said this contact from the BHF was not brought to her attention, or the attention of the Sinn Fein leadership, at that time, which she termed “a serious omission”.
“Michael McMonagle’s actions are utterly reprehensible and he is being held fully accountable under the law. His crimes have inflicted significant harm on his innocent victims. There is nothing more reprehensible than the abuse of a child,” she said.
Ms O’Neill said she was made aware of his suspension and had no further contact with him.
She was pictured at an event which McMonagle had attended in Parliament Buildings in February 2023.
Ms O’Neill reiterated that she had not been aware he was at the event, adding she “had no knowledge that he had gained employment with the British Heart Foundation”.
She apologised on behalf of Sinn Fein for the actions of the press officers.
“I am absolutely appalled and horrified that this occurred. These references were given without the knowledge or authorisation of the party. Under no circumstances would the party provide a reference, for work or otherwise, for Michael McMonagle.
“On behalf of Sinn Fein, I apologise for the hurt and distress caused by their actions.”
She added: “Sinn Fein will be issuing instructions to all managers and members of staff regarding future requests for character references.
“As a political leader and a mother, I want to be clear that the issue of child safeguarding is of paramount importance to me. The Sinn Fein leadership and I will ensure that a situation like this will never arise again.”
Mr McKinney said during his telephone call with Ms O’Neill, he “outlined the processes the BHF undertook in hiring this individual, determining his suitability for employment including full reference checks and the robust internal investigation we undertook after learning of the serious charges against him”.
He added: “Michelle O’Neill agreed recent comments by her and party colleagues questioning the BHF’s due diligence process were unhelpful and she expressed regret for the damage and upset this has caused to our dedicated staff and supporters.
“I wish to reiterate that the BHF is confident we undertook all necessary statutory and moral duties required throughout this entire process.
“Our staff and volunteers in Northern Ireland have been devastated by this issue and our focus now must be on supporting them and focusing on what we are here to do – funding lifesaving research to find the cures and treatments for heart and circulatory disease.
“Lastly, our thoughts are with the children and their families who are the ultimate victims of these terrible crimes.”