Killer Instinct with Chris Hansen

The show takes a look at the murder of a pregnant woman.

The show takes a look into the disappearance of a woman and her three daughters.

The stabbing death of a Vietnam veteran causes Seattle detectives to find out about a crime ring led by a Gypsy con woman.

The discovery of a man's headless body launches an investigation with countless twists and turns, then a teenager confesses accusing his friend of being the mastermind behind the murder.

Chris Hansen interviews a convicted killer in order to understand why he and his brother kidnapped an elderly Texas woman, drove around and showed her off as their "prize" before assaulting her and tossing her into a river where she drowned to death.

When Sheila Davalloo becomes the 'odd woman out' in a love triangle, she kills her rival. The case remains a mystery for months until Sheila tries killing her husband and a dedicated detective finally puts the pieces together of this sordid story.

They were once best buddies in a small Wyoming town. But after Bob Duke's wife and young son die in a tragic fall, it changes this friendship forever, exposing Bob as the killer and Roger as the one to finally expose the horrific truth.

Detectives called the crime scene "a slaughterhouse." Matthew Hoffman killed two women and a boy in an Ohio home before kidnapping a thirteen-year-old girl and holding her hostage. Once arrested, Hoffman’s bizarre obsession is revealed.