Q:What key details about thomas mcmahon -lrb- irish republican -rrb-  can be extracted from the following bio?  Bio: thomas mcmahon -lrb- born 1948 -rrb- is a former volunteer in the south armagh brigade of the provisional irish republican army -lrb- ira -rrb- , and was one of the ira 's most experienced bomb-makers . mcmahon was convicted of the assassination of admiral of the fleet lord mountbatten of burma and three others -lrb- two children and an elderly lady -rrb- at mullaghmore , county sligo , in the west of ireland . he planted a bomb in `` shadow v '' , a 27 ft fishing boat belonging to mountbatten at mullaghmore , county sligo , near donegal bay . lord mountbatten was killed by the bomb blast along with three other people : the dowager baroness brabourne , mountbatten 's elder daughter 's mother-in-law ; his grandson nicholas knatchbull ; and a 15-year-old crewmember paul maxwell . the ira claimed responsibility for the act in a statement released immediately afterwards . in the statement from the organisation they said : '' `` this operation is one of the discriminate ways we can bring to the attention of the english people the continuing occupation of our country . '' '' mcmahon was arrested by the garda -lrb- the republic of ireland 's police force -rrb- two hours before the bomb detonated , having been initially stopped on suspicion of driving a stolen vehicle . he was tried for the assassinations in the republic of ireland , and convicted by forensic evidence supplied by dr james o'donovan that showed flecks of paint from the boat and traces of nitroglycerine on his clothes . he was sentenced to life imprisonment for murder on 23 november 1979 , but was released in 1998 under the terms of the good friday agreement . after his release , toby harnden in `` bandit country '' reported that mcmahon was holding a tricolour in the first rank of the ira colour party at a 1998 ira meeting in cullyhanna . however according to a bbc report , mcmahon has said that he had left the ira in 1990 . he has twice refused to meet paul maxwell 's father , john , who has sought him out to explain the reasons for his son 's death...
A:
- battles is the troubles- allegiance is provisional irish republican army- serviceyears is 1970 -- 1990- birth date is yes 1948- name is thomas mcmahon- birth place is monaghan , county monaghan , ireland- rank is volunteer