brian golsby. he put him behind bars for rape and orderly six years before. in jail. i was shocked. >> reporter: he learned that golsby was released three months before reagan's murder and was living in a house a half-mile from where her car was founded he sent a swat team to make an arrest and bring them in. >> you are here because we have pretty good amount of evidence. >> reporter: the detective with the lien interrogator. >> he wanted to know what we had on him and that is all the information he would provide to us. >> reporter: investigator has his dna inside reagan's car. he quickly copped to robbing her. >> did you drive or did she drive? >> she drove. >> how much money did you get? >> i got $60. >> reporter: you have them in the car with her and going to the atm. you are getting close, but are you getting a confession? >> i didn't kill anybody. i don't know how many times i can say that. i didn't kill nobody. i don't know how to tell you that. then, who could? >> i am not the only one in the city, grove city. >> you were the only one there. >> i told