October 22, 1877 - Tillie Klimek
What distinguished Klimek from many of her contemporaries was the elaborate social performance she constructed around her crimes — presenting herself as gifted with prophetic dreams while methodically poisoning those closest to her in Chicago's Polish immigrant community. The gap between her cultivated image and her actual conduct is what made her effective for as long as she was, and it is that calculated deception, as much as the killings themselves, that secures her place in the record.
From Wikipedia
Ottilie "Tillie" Klimek (born Otylia Gburek; 1876 – November 20, 1936) was a Polish American serial killer, active in Chicago. According to accounts, she pretended to have precognitive dreams, accurately predicting the dates of death of her victims, when in reality she was merely scheduling their deaths.
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