The Most Dangerous Female Criminals of All Time

Nannie Doss : The Giggling Granny

9. Nannie Doss : The Giggling Granny

Who knew that a joyful looking grandma could be so deadly?! Nannie Doss, also known as the Giggling Granny, or Black Widow, killed 11 people between the 1920s and 1954. Her choice of weapon? Rat poison mixed with food and drink. 

And her victims were not strangers – her victims included four of her husbands, her sisters, two children, her mother, her grandson, and her mother in law. She was given a life sentence after pleading guilty and died in 1965. 
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