More than 300 people attended a meeting in Crossmaglen last night in support of the family of Paul Quinn.
The 21-year-old was beaten to death by a group of men in a shed in Co Monaghan eight weeks ago.
Three TDs and several Councillors from the Republic travelled to Co Armagh for the meeting. The support group expects that Minister for Foreign Affairs Dermot Ahern will meet the Quinn family early next week.
Paul Quinn's murder, carried out by a large group of men, continues to cause outrage.
Although the victim lived in Co Armagh, he received his fatal injuries in Co Monaghan, so gardaí have the lead role in the investigation.
To date nobody has been arrested or charged.
The controversy continues about whether republicans were involved and there were several heated exchanges last night.
A number of local Sinn Féin Councillors turned up and said they wanted those responsible brought to justice.
Declan Murphy, a brother of the Sinn Féin MP and Stormont Minister, Conor Murphy, said the campaign was being manipulated for political reasons.
TDs Seymour Crawford, Fergus O'Dowd of Fine Gael and Labour's Liz McManus were present at the meeting.
The support group plans to hold a number of meetings on both sides of the border early next year.
It hopes the Quinn family will have discussions with Dermot Ahern next week.
