Buried in the Backyard

Dr. Judith Calder was previously attacked by a man who told her, "Someone at the university wants you dead."

Investigators looked into a theory that 74-year-old Skip Scandirito disappeared while kayaking with a mystery woman he met at a golf course. 

Billy Sproates' brother knew something was wrong when he didn't show up to a scheduled hunting session in the Delaware forest.

Tera Lewandowski was looking for a fresh start when moving in with a town council member who led a double life.

Was Bryan Ruff an overwhelmed father who walked away from his life? Or did something more sinister happen? The theories ran wild around the 1991 disappearance of a man who simply vanished from his graveyard shift. 

Between boyfriends and stepfathers, there was no shortage of suspects in the disappearance of Becky Stowe. 

A caped stranger nicknamed "The Count" lurked around L.A.'s Sunset Strip in search of his victims, including 18-year-old Lisa Ann Mather. 

Boyfriends and serial killers were just a couple of theories surrounding the 1987 disappearance of Vickie Eddington.

Authorities in California say many voiced their dislike for the victim online after he mysteriously disappeared. 

The body of Donal "Dee" O'Sullivan was found in a deep freezer buried on a rural property in Canaveral Groves, Florida.