Female Serial Killers
She's one of the most prolific female serial killers of all time, with an estimated 36 victims.
By Jessica Ferri
French Serial Killers
This demented ripper cut a trail of death across the French countryside in 1897, leaving 11 known victims in his wake.
By Orrin Grey
Lurking within this man of medicine was a ruthless killer who lured dozens of victims to their doom.