one of them was the daughter of another bus driver. i m talking 14-year-old girls. reporter: oh, boy. he was a substitute teacher but got fired for some of the things he was saying in his classes. reporter: apropos of young girls. yes. and he left the area and moved down to california. reporter: the troopers went looking and found him in davis, california. we flew down there to try to talk to him. reporter: could this be him, the man who raped and murdered bonnie? could the hunt finally be over? they got his dna. it came back that he was the individual involved in bonnie s death or that he had sex with her. everybody was happy, everybody was ecstatic. reporter: you got your guy. we got our guy. reporter: finally they had their man. but what it is they say? don t count your chickens. the dna match was everything bonnie s family was hoping for. it was hoping to deliver justice. coming up
route. and we just found out from strange things about this guy. he had several reports about him trying to pick up young girls. one of them was the daughter of another bus driver. i m talking 14-year-old girls. reporter: oh, boy. he was a substitute teacher but got fired for some of the things he was saying in his classes. reporter: apropos of young girls. yes. and he left the area and moved down to california. reporter: the troopers went looking and found him in davis, california. we flew down there to try to talk to him. reporter: could this be him, the man who raped and murdered bonnie? could the hunt finally be over? they got his dna. it came back that he was the individual involved in bonnie s death or that he had sex with her. everybody was happy, everybody was ecstatic. reporter: you got your guy. we got our guy. reporter: finally they had their man. but what it is they say? don t count your chickens. when we come back, you d
something. reporter: something was broken in the family, could never be fixed, of course. but then there was this news, huge news that the dna matched a one-time bus driver who had moved on to davis, california pap the troopers called karen as soon as the results came in. you get excited. you think, wow. reporter: this is the guy. yeah. then the bomb hit. reporter: the bomb. the bomb. they had some new dna system out. they retested it. and turned out it wasn t him. reporter: ouch. no one could believe it. reporter: back at square one. back at square one. then dealing with karen again. reporter: karen ramped up her campaign to keep bonnie s case in the public eye. bonnie s mother karen campbell continues her own crusade to find her daughter s killer. she remains unsatisfied with the investigation. i m going to be angrier than hell. reporter: the attention brought in tips. troopers tested more than 100 dna samples. and nothing came of it but frustration. the
never be fixed, of course. but then there was this news, huge news that the dna matched a one-time bus driver who had moved on to davis, california and the troopers called karen as soon as the results came in. you get excited. you think, wow. reporter: this is the guy. yeah. then the bomb hit. reporter: the bomb. the bomb. they had some new dna system out. they retested it. and turned out it wasn t him. reporter: ouch. no one could believe it. reporter: back at square one. back at square one. then dealing with karen again. reporter: karen ramped up her campaign to keep bonnie s case in the public eye. bonnie s mother karen campbell continues her own crusade to find her daughter s killer. she remains unsatisfied with the investigation. reporter: the attention brought in tips. troopers tested more than 100 dna samples. and nothing came of it but frustration. the case grew cold, as cold as some of the winter nights up here. and four years became six,
and we just found out some strange things about this guy. he had several reports about him trying to pick up young girls. one of them was the daughter of another bus driver. i m talking 14-year-old girls. reporter: oh, boy. he was a substitute teacher but got fired for some of the things he was saying in his classes. reporter: apropos of young girls. yes. and he left the area and moved down to california. reporter: the troopers went looking and found him in davis, california. we flew down there to try to talk to him. reporter: could this be him, the man who raped and murdered bonnie? could the hunt finally be over? they got his dna. it came back that he was the individual involved in bonnie s death or that he had sex with her. everybody was happy, everybody was ecstatic. reporter: you got your guy. we got our guy. reporter: finally they had their man. but what it is they say? don t count your chickens. the dna match was everything bonnie s family had been hoping