TODAY | December 10, 2013
>> denver where aron ralston , the hiker that famously amputated his own arm to save his life was taken into custody for a disturbance at his girlfriend's home. there's a major development on this story. miguel almaguer has the details.
>> reporter: 28-year-old aron ralston avoided cameras while leaving court. the adventurer who became famous for amputated his arm with a pocket knife to avoid being pinned by a boulder. it was drama tiezed in the film 127 hours. he was arrested friday night during an altercation with his girlfriend and mother of his young daughter. scheduled to be in court monday charges against ralston were suddenly dropped. the city attorney saying there is no case. his girlfriend, however, faces three charges. assault, disturbing the peace and wrongs to a minor. their baby at home during the fight.
>> she has entered a not guilty employee.
>> reporter: according to a police report he was struck twice in the back of the head with fists by shannon from an argument over their other son. ralston shoved her on the shoulder as he left their apartment. ralston 's story of survival inspired kids and audiences over the years.
>> seeing things that could have been a tragedy and seeing them as a blessing and maximizing the opportunities that come.
>> reporter: now having spent a night in jail but cleared of any criminal charges , he is once again in the spotlight. for today, miguel almaguer, nbc