In 2006, following claims that "an RUC agent" had supplied the getaway car to the gunmen, the victims' families lodged an official complaint about the investigation with the Police Ombudsman. The complaint included allegations "that the investigation had not been efficiently or properly carried out; no earnest effort was made to identify those responsible; and there were suspicions of state collusion in the murders". It was alleged that police agents or informers within the UVF were linked to the attack, and that the police's investigation was hindered by its desire to protect those informers. The victims' families also alleged that the police had failed to keep in contact with them about the investigation, even about significant developments.