9 most evil female serial killers – Their evil deeds will leave you speechless (With Pics)

8. ELIZABETH BÁTHORY
A.K.A. – THE BLOOD COUNTESS

Hungarian noble ELIZABETH BÁTHORY went down as one of the most ruthless killers in European history. Between 1585 and 1610, Báthory is believed to have tortured and killed nearly 650 girls – mostly teenage peasants. Though she used her family’s influence to avoid execution after being caught, the countess was forced to remain in her castle for the rest of her life, with a brick wall erected at her door.