you think, wow -- >> this is the guy? >> yeah. >> then the bomb hit. >> the bomb? >> the bomb. they had some new dna system out. they retested it and it turned out it wasn't. him >> ouch. >> no one could believe it. >> back at square one? >> back at square one. and dealing with karen again. >> karen ramped up her campaign to keep the case in the public eye. >> bonnie's karen campbell continues her own crusade to find her daughters killer. she remains unsatisfied with the investigation. >> the attention brought in tips. troopers eventually tested more than 100 dna samples. and nothing came but frustration. the case grew cold. as cold as some of the winter nights up here. and four years became six, eight, ten we. the case faded from the public spotlight. as you around thanksgiving, 2006 six, 12 years after the murder when trooper hunyor answer the phone one day -- >> couldn't believe it. the director of the state crime