This week we explore two cases of women who killed their husbands. 
Betty Lou Beets shot her first  husband and tried to run over her third, but it was her fifth husband that she eventually killed. 
Katherine Knight also had a string of violent relationships, but it was her fourth beau that paid the price for declining to marry her.  Not only did she kill this man, but she also mutilated his corpse in a way that defies belief. 

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