Find out more about the investigation into the death of Bette Lucas, who was found dead in her Tyler, Texas home in 1988 ...

A wealthy socialite dies after falling down a staircase. Was it an accident or murder? Investigators must rely on physics to determine the answer.

Read about prominent Atlanta attorney Gary Farris, known as "Big Daddy," who vanished and then turned up dead on his family's sprawling Georgia estate.

Learn more about the family dispute that led to Aisling “Tucker” Moore-Reed fatally shooting her uncle Shane Moore in Oregon ...

David Temple calls 911 to report that his 8-months pregnant wife, Belinda Temple, has been shot to death.

Kelly Siegler shares insight on David Temple's refusal to take a polygraph test after his wife's brutal murder.

Investigators find Belinda Temple's body in a closet in her home. A "significant amount" of brain matter is present around ...

New leads arise as detectives investigate who was responsible for Belinda Temple's murder.

At David and Belinda Temple's home, a burglary appears to have taken place.

Brenda Lucas and Belinda Temple had a special bond that came from being twin sisters.

Kelsie Schelling's car is found hours away from her home and work, driven by a mystery man.

When more and more unsettling details are revealed in the disappearance of Kelsie Schelling, the theories about what happened to her run wild.