A man who allegedly made bombs for a terrorist group responsible for a string of attacks in New York more than 40-years ago has been revealed to be living in leafy suburbia as a high school teacher . Ronald Fliegelman is said to have built explosives for the far-left group Weather Underground who ran a terrifying campaign across the country during the 1970s . But according to a new book seen byThe New York Post , after avoiding prison on a technicality he managed to build a successful , 25-year career in the classroom after the group disbanded - and still has n't served a day in prison . Ronald Fliegelman built explosives for the far-left group Weather Underground who ran a terrifying campaign across the country during the 1970s . Firefighters work at extinguishing the fire at a residence in Greenwich Village on March 6 , 1970 . Three members of the Weather Underground were killed when a bomb went off prematurely . Bryan Burrough 's book , Days of Rage : America 's Radical Underground , the FBI , and the Forgotten Age of Revolutionary Violence , states Fliegelman is now living a quiet life in Park Slope in Brooklyn after retiring . But the author , who also penned the books Public Enemies about America 's crime wave in the 1930s and 40s , say 's the culprit is not sorry for what he has done . Burroughs told The Post : 'Ron is proud of what he did . ' The Weathermen , as they were popularly known , was set up in 1969 and run by the co-founder Bill Ayers . He went on to become a University of Chicago professor and his friendship with Barack Obama was questioned during the 2008 race for the White House . The Weathermen , as they were popularly known , was set up in 1969 and run by the co-founder Bill Ayers ( pictured in 2013 ) The group was mostly of white and middle class and advocated the overthrow of the US government . Their name was based on the Bob Dylan lyric : 'You do n't need a weatherman to know which way the wind blows . ' In 1970 they waged they issued a 'Declaration of a State of War ' against the United States . The same year a bomb exploded inside a Greenwich Village , New York , residence prematurely , killing three members . They also staged attacks on the Capitol Building in Washington D.C after the invasion of Laos in 1971 , and targeted the New York Department of Corrections building in Albany after 29 inmates died during the Attica prison riot the same year . According to The Post one of the Weathermen told Burroughs : 'We believed Third World countries would rise up and cause crises that would bring down the industrialized West , and we believed it was going to happen tomorrow , or maybe the day after tomorrow . ' Former group member Howie Machtinger added : 'The myth , and this is always Bill Ayers ’ line , is that Weather never set out to kill people , and it ’ s not true — we did . 'You know , policemen were fair game . ' The New York Post approached Fliegelman in leafy Park Slope and asked him about his past . 'What happened 40 years ago is different from what ’ s going on today . War was a big thing . It was on TV every night . You don ’ t know that with the Iraqi war , the Afghanistan war . There was the draft , as well , ' said Fliegelman . When it was put to the 70-year-old that he was a not a freedom fighter but a terrorist , he reportedly disagreed . 'Did you ever notice how many people were hurt by our bombs ? People were not hurt by our bombs , ' said Fliegelman . Bryan Burrough 's ( right ) book , Days of Rage : America 's Radical Underground , the FBI , and the Forgotten Age of Revolutionary Violence claims the teacher is now living a quiet life in Park Slope , Brooklyn .
Ronald Fliegelman , 70 , is said to have built explosives for the far-left group , The Weather Underground . He was arrested in 1985 and sentenced to life without parole after being found guilty of conspiracy to use a weapon of mass destruction against federal buildings.