Season 4

A Thanksgiving feast turns into a family's last when a cold blooded killer brutally stabs and dismembers a couple the day after their holiday celebration.

Dayton, Ohio, is terrorized over the Christmas holiday as a string of brutal shootings have the residents wondering if they could be next.

Beloved Christmas tree farmers are executed in the front seat of their car and a manhunt for their killer is launched that keeps investigators on the case for over three decades before justice is served.

When a young mother is murdered during Christmas, investigators uncover a love triangle that shocks her family and forever robs them of their holiday cheer.

A teenage boy discovers a real-life horror scene in his home on Halloween morning; investigators must determine if the triple homicide is a random act of evil or a premeditated slaughter by someone close to the family.

After a single young mother fails to show up for work on Halloween, her family and friends suspect murder.

A prominent couple is found brutally murdered in their Montgomery, Alabama, home on Thanksgiving night, leading detectives on a cat and mouse chase spanning thousands of miles across multiple states.

When a young man and woman are found shot execution style in a mall parking lot in the early hours of Christmas Eve, investigators believe a love triangle might have led to these brutal murders. A weeks-long search for the prime suspect uncovers another murder and a devious killer.