(Silver Spring, Md.) Legend has it that Bloody Mary was a ruthless killer, whose soul could be summoned by a simple ritual that unleashes a vengeful woman’s wrath. Though reciting “Bloody Mary, Bloody Mary, Bloody Mary!” into a mirror may be just a scary slumber party prank, it’s true that some of history’s most brutal female killers have borne the name of Mary. After all, Mary was the most popular name for females in the English-speaking world from the 1800s to the 1960s. In Investigation Discovery’s all-new special, BLOODY MARYS, explore chilling tales of these notorious, like-named murderers driven to kill out of anger, jealousy, greed, or just for the thrill.