Question: Owen Martin O'Hagan was a former member of an army which emerged in what year?
Sentence (from "Martin O'Hagan"): Owen Martin O'Hagan, (23 June 1950 – 28 September 2001) was an Irish investigative journalist from Lurgan, Northern Ireland and a former member of the Official Irish Republican Army who spent much of the 1970s in prison.
Relevant evidence: Yes