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22 Fascinating And Terrifying Facts About Amy Archer-Gilligan

Amy Duggan “Sister” Archer-Gilligan was a Windsor, Connecticut, nursing home proprietor and serial killer. She killed at least 5 people by poisoning them. One of her victims was her second husband, Michael Gilligan, while the others were the residents of her nursing home. Take a look below for 22 more fascinating and terrifying facts about…