>> so now the coincidence you just couldn't make up. the very week carol left a phone message for dr. hampikian for help, idaho's innocence project had just taken on a new case, the case of the man convicted of killing carol's daughter, christopher tapp. the doctor called carol back. >> her words to me, i'll never forget, i just want to know what happened to my daughter. and, you know, it still brings the hair up on the back of my neck. the curious at first surprise you? >> the knowledge surprised me. she's turned all of that love and devotion for her daughter into a very careful record of this case. >> so she read that report to him, the one that said the pubic hairs found on angie were similar to or the same as the victim. >> he goes, well they're either her's or they're not. just as you had thought? >> he said, well where are the hairs? i said i assume that they're still in evidence.