37-year-old mother of four, Crystal Rasch, vanishes into thin air. The last time she was seen was on surveillance video as she and her estranged husband, Zachariah Rasch, go out to eat and run errands around town. Crystal is reported missing by her stepmother and investigators interview Zachariah Rasch since he was the last person known to see Crystal before she disappeared.  It turns out Crystal's soon-to-be ex-husband lies to investigators about using Crystal's personal bank account and debit card as he makes hundreds of dollars in purchases after the date Crystal was last seen. Zachariah is captured on surveillance video using Crystal's debit card without Crystal being present. This leads investigators to search Zachariah Rasch's property that includes an active "burn pile". Joseph Scott Morgan and Dave Mack take a look at what investigators uncovered in the "Missing Person" case and how a single tooth found in the burn pile turned into a charge of first-degree homicide.