[[Klimek, Ottillie|Ottilie "Tillie" Klimek]] (born [[Klimek, Ottillie|Otylia Gburek]]; [[1876-01-01 - 1936-11-20||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.