Two different sources include in the campaign two incidents which happened outside South Armagh ; one in Belcoo , County Fermanagh , where a constable was killed , the other in West Belfast , in June 1993 . An RUC investigation following the latter shooting led to the discovery of one Barrett M82 , hidden in a derelict house . It was later determined that this rifle was the weapon responsible for the first killing in South Armagh in 1992 . Another Barrett is reported to have been in possession of the IRA team in the Occupation of Cullaville in South Armagh in April 1993
Occupation of Cullaville
Occupation of Cullaville
South Armagh Sniper (1990–1997)