Original sentence: 1948 in Monaghan Town, County Monaghan, Republic of Ireland) was a volunteer in the South Armagh Brigade of the Provisional Irish Republican Army (IRA).In 1972 and 1975, he was acquitted of IRA membership at two court cases in Dublin.McMahon was a member of a IRA unit which planted a bomb in Shadow V, a 27ft fishing boat belonging to Lord Mountbatten of Burma at Donegal Bay, Mullaghmore, County Sligo
Edited sentence: 1948 in Monaghan Town, County Monaghan, Republic of Ireland) was a volunteer in the South Armagh Brigade of the Provisional Irish Republican Army (PIRA).In 1972 and 1975, he was acquitted of PIRA membership at two court cases in Dublin.McMahon was a member of a PIRA unit which planted a bomb in Shadow V, a 27ft fishing boat belonging to Lord Mountbatten of Burma at Donegal Bay, Mullaghmore, County Sligo