After an apparent home invasion in Minnesota leaves Heidi Firkus dead and her husband Nick hospitalized, detectives learn the young couple was facing financial troubles.

When Joy Hibbs is found dead in a fire, an autopsy shows she was murdered beforehand. The case went cold for years, until decades later, a shocking secret is revealed. Blayne Alexander reports.

On Friday the 13th, 25-year-old Chantay Blankinship doesn't come home from her usual walk around the neighborhood. Two days later, searchers make a gruesome discovery at an abandoned farmhouse that locals call the Haunted House. When all leads dry up, investigators turn to a unique forensic DNA tool, which sparks a shocking confession during a church service.

In 2013, Desiree Sunford is found murdered in her Yakima, Washington, home. The case, which begins with what seems to be a simple burglary, spirals into a complex investigation exposing a tangled web of betrayal, deception, and fatal obsession.

22-year-old Jasmine "Jazzy" Pace, a young Tennessee woman, mysteriously vanishes and misses her family's Thanksgiving dinner. Determined to track her down, her family takes matters into their own hands, pursuing every digital clue she left behind. What begins as a missing persons report evolves into a disturbing and calculated murder investigation.

College student Anita Knutson is found stabbed to death. The case took years and the unwavering commitment of loved ones and investigators to reach a resolution.