bars in Northern Ireland Mass murder in 1993 Mass murder in County Londonderry Mass shootings in Northern Ireland Massacres in Northern Ireland Massacres in 1993 October 1993 crimes October 1993 events in the United Kingdom Terrorist incidents in County Londonderry Terrorist incidents in the United Kingdom in 1993 1990s murders in Northern Ireland 1993 crimes in Ireland The Troubles in County Londonderry Ulster Defence Association actions