"The investigation by the IRA into the murder of Robert is a matter for themselves. For this family it would only be in court, where transparency and accountability prevail, that justice will be done.
"It is the family's position that up to 12 volunteers were involved in the cover-up, not the offence in Market Street, where up to three were involved. However, it was that cover-up which prevented those who murdered Robert from being brought to justice.
"We met with the IRA at their request on Monday, March 7th. During that meeting we were informed of the findings of their investigation to date, but again it is only in a court that the truth will come out.
"At the meeting Bridgeen [ Hagans, Robert's partner] asked the IRA representatives a question that has been haunting her and the family for five weeks: Why did they kill Robert? They responded openly and directly that there was no reason. We want the investigation into Robert's murder to be conducted through due process. Only this will ensure people are held to account for their actions.
"It is now five weeks since Robert was murdered and no one has come forward with substantial evidence. This must be due to ongoing intimidation and fear.
"Until they do we will continue to campaign for justice for Robert."