A newlywed mysteriously disappears after taking a phone call from an unknown individual. He is later found deceased in a famous Baltimore, Maryland hotel but nothing about his disappearance and death seems to make sense to his family or law enforcement.

A beauty salon owner and mother disappears without a trace and is later found deceased deep in the woods of Georgia. Many persons of interest come to light but no one is able to specifically say what happened or who took Patrice Endres' life.

In early April 2011, the Dupont de Ligonnés family mysteriously disappears from their home in Nantes, France. On April 21, the bodies of the mother and her four children are discovered buried on their property -- but the patriarch, Xavier, is nowhere to be found. He is considered the prime suspect in their murders and has been on the run for nearly a decade.

23-year-old Alonzo Brooks disappears after a house party near La Cygne, Kansas on April 3, 2004. He was found dead one month later, but the cause of death could not be determined. His family believes that Alonzo (who was half black and half Mexican) was the victim of a hate crime.

Residents of Berkshire County, Massachusetts, recall their baffling, terrifying experiences with a UFO on the night of September 1, 1969.

A young mother disappears after revealing to members of her family what really happened to her long-missing step-father.

Police find the body of former White House aide Jack Wheeler in a landfill. Security footage captures strange events in the days leading up to his death.