In 1978, Mark Fair left for work and his fiancée Karla Brown remained at home. When Mark and a friend returned home that evening, they found Karla dead. The condition of Karla's body told investigators that she was a victim of sexual assault; she had resisted, struggled and was killed. The police questioned neighbors Paul Main and John Prante, but they were considered low-level suspects. During autopsy, they were able to re-examine bite marks found on her body. A computer enhancement gave a better view of the bite marks and the science of forensic odontology identified John Prante. On July 15, 1983, five years after the murder, Prante was found guilty and sentenced to 75 years in prison.