>> reporter: alan coleman is now in prison, but for years he worked as a history teacher at a pair o d.c charter schools, despite having a history himsyf. capital cublic charter 5 hool fired coleman in 2 dfter learning of allegations he had sexually abu former student at a different school a decade earlier. yet at gainesville, florida, public school hired four months after he was let go in d.c. he told the news 4 i-team that capital city gave him a positive job reference about coleman. >> we were told this is a employee who was an excellent teache >> reporter: it wasn't until a year later that d.c. police say they were told about coleman's abuse allegations, not by the school, but the vtim himsel >> reporter: police arrested coleman and he pleaded guilty in 2017. capital city last yr told the i-team they were confident they properly handled the matter, but d.c.'s office of attorney general investigad how the school handled coleman's case, but told us it f declined e criminal charges against any employee for not reporting the alleged abuse. >> we'll be paying verylose attention to thi