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Anna Marie Hahn
Killed 35 times
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H. H. Holmes
Killed 28 times
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From Wikipedia:
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Anna Marie Hahn (July 7, 1906 - December 7, 1938), known as "Arsenic Anna", was the first woman to die in the electric chair in Ohio and America's first female serial killer to die in the chair. She was executed for the murder of 73-year-old Jacob Wagner of Cincinnati in 1937. Hahn, an immigrant from Bavaria, was suspected in numerous other poisoning deaths. |
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Herman Webster Mudgett (May 16, 1860 – May 7, 1896), better known under the alias of Dr. Henry Howard Holmes, was an American serial killer. Holmes trapped and murdered possibly hundreds of guests at his Chicago hotel, which he opened for the 1893 World's Fair. He confessed to 27 murders, although only nine have been confirmed. Holmes is often cited as the first American serial killer.
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