Whole families were slaughtered in the name of human sacrifice—or was it insanity?
What's more haunting than the unknown?
In 1968 her body was found. Her identity would remain a mystery for decades.
Keep the lights on while you watch these stories unfold.
Though Cullen confessed to 40 murders, some investigators believe he killed as many as 400 people.
Did the supposedly infamous Romanian killer really slay 35 people?
These tragic cases prove we never really know what’s waiting in the woods.
Lois Duncan’s once-eternal question, Who Killed My Daughter?, seems to have been finally answered.
He had a disturbing confession to make back in 1982.
The stars spell murder.
Stealing, telling phony fortunes, faking prophetic messages on 'freshly laid' eggs, and poisoned puddings were just the beginning for Mary Bateman.
Chilling crimes carried out by children.
Get a fascinating new perspective on the darkness that lives within these violent offenders.
The killer's own defense attorney described him as “the very definition of heartless evil.”
This sad tale has a peculiar ending.
A nephew of the Chinese emperor, Liu Pengli was feared by many.
This 1983 missing person's case continues to cause controversy and anguish.
Her murder bears eerie similarities to the 1992 horror film.
This 1911 death rattled Chicago citizens and media.