Could Theresa have been killed by an outsider? Detective Kenneth Mains, President of the American Investigative Society of Cold Cases shares his theories on the case. Theresa was murdered nearly 40 years ago and much of the evidence in the case has gone missing over the years. Could exhuming Theresa's body be the key to finding her killer?This is the final planned episode of S01. Stay subscribed for S02, coming soon.