In March 1988 , three IRA volunteers who were planning a bombing were shot dead by the SAS at a Shell petrol station on Winston Churchill Avenue in Gibraltar , the British Overseas Territory attached to the south of Spain . This became known as Operation Flavius . Their funeral at Milltown Cemetery in Belfast was attacked by Michael Stone , a UDA member who threw grenades as the coffin was lowered and shot at people who chased him . Stone killed three people , including IRA volunteer Kevin Brady . Stone was jailed for life the following year , but was freed 11 years later under the Good Friday Agreement . When two British Army corporals , David Howes and Derek Wood , drove into Brady 's funeral in Andersonstown in a civilian car and clothes , with their guns in their car . They were kidnapped , taken away and shot dead by the IRA . This became known as the Corporals killings
Corporals killings
Corporals killings
The Troubles