Belle Sorenson Gunness was a six-foot-tall Norwegian-American woman who killed between 25 and 40 people in her lifetime. Nicknamed "Lady Bluebeard," Gunness allegedly killed several of her suitors, boyfriends, husbands, and children. But why? She committed these murders to collect large sums of money in life insurance (as well as other valuables), then killed her witnesses—naturally. Hear her unbelievable story in the video below and uncover the mysteries still surrounding this serial killer today.
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