The Quinn family of south Armagh has asked to meet the North's First Minister, Ian Paisley, over alleged IRA involvement in the murder of Paul Quinn last month.
The 21-year-old was beaten to death during a paramilitary-style gang assault in a Co Monaghan.
His family claims members of the Provisional IRA from south Armagh were involved and this has been backed up by the Independent Monitoring Commission.
Sinn Féin, however, has insisted that no republicans were involved and that the killing was related to a criminal dispute.