Wikimedia Commons/Idaho State Penitentiary
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Lyda Southard’s Trail of Poisoned Husbands
The Old Idaho State Penitentiary in Boise housed America’s first female serial killer for a decade. Lyda Trueblood started killing in 1912 after marrying into the Dooley family in Twin Falls.
She poisoned four husbands and three family members with arsenic from boiled flypaper, collecting life insurance each time. Her victims suffered slow, agonizing deaths that doctors blamed on typhoid and food poisoning…