Six men died in a Chicago woman's home over three years. Further investigation showed that 47-year-old Margaret Summers had been married six times and all were dead. She had taken out nineteen life insurance policies, all naming her as the sole beneficiary. Summers claimed innocence, but the police thought otherwise. 

Also, find out when the first permanent photograph was taken and three different stories of lost cyanide. 

Retrosponsor: Tintex fabric dye.

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