The weapons were later used by the same gang in carrying out the Halloween Greysteel massacre at the Rising Sun pub on 31 October 1993 . It has been claimed that one of the gang was a double agent and protected by RUC Special Branch . Torrens Knight received eight life sentences for the Greysteel massacre , together with four more for the Castlerock killings . He served seven years in the Maze Prison before paramilitary prisoners were granted a general release under the Belfast Agreement
Greysteel massacre
Greysteel massacre
1993 Castlerock killings