the cathy torrez case grew colder by the day. iewicz: you and armando got divorced? tina mora: yes. this this have something to do with that? tina mora: definitely. it was all intermixed. josh mankiewicz: daron wyatt was promoted to detective sergeant. and his case load shifted to other types of crime. but he never forgot his promise to mary, in part because of a milestone in his own life. detective daron wyatt: my first daughter was born. and i remember going to mary shortly after that and looking her in the eye and saying i know. i know now how you feel. i know it. i can feel it myself. i'm a dad now. and you haven't given up. i won't give up. narrator: in 2003, nine years after the murder, daron once again approached a friend in the da's office. detective daron wyatt: i said i've got a cold case and i need you to take a look at. and he physically stops walking, and he says if it's a case i'm thinking about, i'm not going to touch it. narrator: but daron was persistent. eventually he persuaded his friend to take cathy's case bac