. >> anchor: today after powerful impact statements from ritzer's family, judge david lowey called the crime brutal and senseless. chisolm will have the possibility of parole because he is a minor. however, it won't be for 40 years before his first chance at parole actually happening. chisolm was just 114 when he followed colleen ritzer into a school bathroom where he strangled her and stabbed her 6 times. the judge called ritzer a quiet heroin after her family poured out their emotions in court. >>> i wish i could have helped colleen but no one could have helped they are that day because no one knew what evil sat in her classroom that day. that moment in time has forever changed my family and my family family's lives. lives.. >> anchor: chisolm's mother shared a statement sharing her " bell respect for the ritzer family as they continue their journey to heal." >> anchor: terrifying threat against the quincy detective. police say this man left a menac menacing message threatening the lives of the detectives family. dan hausle live in quincy now with what prosecutors revealed in court a

. >> anchor: today after powerful impact statements from ritzer's family, judge david lowey called the crime brutal and senseless. chisolm will have the possibility of parole because he is a minor. however, it won't be for 40 years before his first chance at parole actually happening. chisolm was just 114 when he followed colleen ritzer into a school bathroom where he strangled her and stabbed her 6 times. the judge called ritzer a quiet heroin after her family poured out their emotions in court. >>> i wish i could have helped colleen but no one could have helped they are that day because no one knew what evil sat in her classroom that day. that moment in time has forever changed my family and my family family's lives. lives.. >> anchor: chisolm's mother shared a statement sharing her "

>> reporter: for nearly two hours judge david lowey listened in the salem support i don't remember court to just gut wrenching victim impact statements, there were nine of them in all before he sentenced the former freshman fromdown verse high school for his role . >>> put this animal behind bars an i beg of you do not give this court an tunnel to shatter . >>> i whereby i could have helped colleen but to one could have helped her but no one knew >> reporter: impassioned pleas from justice from friends and family of colleen ritzer just hours before the convicted teen killer would be sentenced . >>> i lost my beautiful little girl. colleen was my daughter, my friend, someone i could go to for anything. >>> colleen was ear place will an i miss my best friend every day. the world is a much darker place without colleen in it. >> reporter: ratter was ripped and murdered by the then 14 14-year-old back in october of 2013 when he savagely attacked his 24-year-old math teacher inside a send floor bathroom at danvers high. colleen's mother recalled in her emotional victim impact statement being t