The son of a veteran republican campaigning to prove the IRA was responsible for the murder of a man nearly a year ago appeared in a Newry court today on terror charges.

The Northern Ireland Assembly is to debate claims that current and former Provisional IRA members murdered Paul Quinn.

The family of a man murdered in the North two months ago, today insisted Sinn Féin must withdraw allegations that he was a victim of a dispute between criminals before they will talk to the party.