This episode is part of our “Black Widows” series, where we detail how these female criminals lured their prey, and why they chose to kill. Tune every day this month for a new episode! Regular Female Criminals episodes will continue to run every Wednesday. Today, we’re discussing Stacey Castor. She appeared to be a resilient single mother, grieving the death of not one but two husbands. But when one detective suspected foul play in the death of David Castor, her poisonous true nature finally came to light...

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