and it hurt and i couldn't move because of the drugs. and i remember him on top of me. >> reporter: many of these women said they had something in common: cosby took advantage of them when they were young and vulnerable. it was too late for most of them to have their day in court the statute of limitations had run out. some expressed frustration cosby had never been prosecuted. heidi thomas. >> and see if we can maybe start to address&-- an epidemic crime. >> my name's kevin steele... >> reporter: a few months after that interview, a new d.a. was elected in montgomery county, pennsylvania. armed with another investigation, the d.a.'s office charged cosby in the constand case. >> today, after examination of all the evidence we are able to seek justice on behalf of the victim..." >> reporter: in december of 2015, bill cosby was arraigned on three counts of aggravated indecent assault. >> mr. cosby you want to say anything? >> reporter: cosby pleaded not guilty. >> mr. cosby how do you feel,