 A total of 25 rounds had been fired in the attack, 11 of the bullets had struck the car's front windscreen.One of the Armalites had last been used in a helicopter attack at Silverbridge on 23 June 1988 and the other Armalite had been used in the killing of alleged Garda informer Eamonn Maguire on 1 September 1987 at Cullaville.The other two guns were "clean" weapons.