not just the search for heather's killer but a office run amok. a battle bogle was determined to win. >> this girl was tough, taking care of kids. her number 1 priority was heather. we need to find out who did this. >> i would think your sister would be proud of you. >> thank you. >> do you feel better? >> i feel relieved we finally know what happened. >> you know who. >> yeah. >> and you know who it wasn't. >> exactly. >>> that's all for this edition of dateline. i am andrea canning. thank you for watching. watchin >>> hello, this is dateline. >>> any time a child goes missing, it is a scary thing. you know there is evil out there. >> first, michelle, then jenny. >> bloodhounds came, police were there. >> two young girls, taken. >> similarities, blonde, blue eyes, riding a bike. >> as a little kid it definitely scared me. >> she was a girl then as well, solving these mysteries was her mission. could cutting edge technology crack a ice cold case? >> no way. >> i believe in the devil and i think people that do not believe in the devil are in for a big surprise. >