. >> this is the expert, doctor greg hampikian amy fruit fly geneticist who now spreads his infectioushusiasm at boise state university. but his work is not all done in the classroom, in fact his own path changed back in 2004 when he was asked to test some dna which would lead a innocent man to be released from jail in georgia. he wrote a book on that. and just like that, the doctor found a new calling. hampikian in is now in high demand. he was in a team credited for freeing mr. knox. and in a spare time, he is the founder of the idaho innocence project. >> honestly, i've worked on 13 exonerations now. for the ones in georgia, they found the actual perpetrators. so to those four guys, i'm the guilty project. >> so now the coincidence you could not make up. the very weak carroll left a message to doctor hampikian asking for help, what the idaho innocence project will take on a new case, the case of the man who killed angie. the doctor called her back. >> her words to me were, i'll never forget, i just want to know what happened to my daughter. and it still brings the hair up on the bac