The True Story of Tillie Klimek: Chicago’s Serial Poisoner or Media Creation?

In October 1922, Joseph Klimek was violently ill inside his Chicago home. For weeks, severe stomach pain, weakness, and persistent nausea had left him unable to eat. When concerned family members intervened and moved him to a local hospital, doctors discovered trace amounts of arsenic in his system.

When police questioned Joseph’s wife, Tillie Klimek, they uncovered a dark trail of illness and sudden deaths surrounding men connected to her. Before long, investigators were exhuming graves, interviewing neighbors in Chicago’s Polish immigrant community, and probing nearly 20 cases.

Was Tillie Klimek a lethal serial poisoner, a psychic who predicted death, or the focal point of a sensationalized media narrative? Here is the true story of Tillie Klimek, grounded in historical records and courtroom evidence.

At a Glance: The Tillie Klimek Mystery

• The Subject: Tillie Klimek, a 1920s Chicago housekeeper who eerily seemed to predict the exact dates of her husbands’ deaths.
• The Mystery: Why multiple men in her life kept falling ill with severe stomach ailments—and why neighbors found a coffin in her basement while her husband was still alive.
• The Breakthrough: How one husband’s narrow escape from her kitchen exposed a trail of exhumed graves, police interrogations, and shocking allegations in “Little Poland.”

Life in Chicago’s “Little Poland”

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Before the headlines and sensational murder trial, Tillie Klimek was born Otylia (or Teofila) Gburek in Poland in the 1870s. Her family emigrated to the United States while she was young, settling in Chicago’s dense Polish immigrant neighborhood, frequently referred to as “Little Poland.”

In this tight-knit community, neighbors attended the same churches, frequented the same markets, and knew the inner workings of nearby households. Tillie was known locally as a capable housekeeper and a skilled cook—a detail that would later feature heavily during police investigations into her kitchen.

The Early Husbands: 1895–1914

Around 1895, Tillie married her first husband, Joseph Mitkiewicz. Their marriage lasted nearly two decades. In January 1914, Joseph fell ill with stomach problems and died shortly after on January 13. His official cause of death was listed as heart trouble, and he was buried without criminal suspicion.

Six weeks later, on February 27, 1914, Tillie remarried a neighborhood man named Joseph Ruszkowski. By May, Ruszkowski developed similar severe stomach ailments and died on May 20, less than three months after the wedding. Both deaths were certified by local authorities without an autopsy or formal investigation at the time.

Predicting Death: Frank Kupczyk and the Coffin in the Basement

Around 1919, Tillie married Frank Kupczyk, settling at 924 North Winchester Avenue in Chicago. Like her previous partners, Frank eventually grew ill with lingering stomach pain and progressive weakness.

During Frank’s prolonged illness, neighbors noted unsettling behavior from Tillie:

• Ominous Predictions: Tillie reportedly told neighbors Frank would not survive much longer, jokingly remarking he had only “two inches to live.”
• Mourning Attire: Her landlady testified that Tillie began sewing her widow’s mourning veil while Frank was still alive in his bed.
• The Discounted Coffin: Tillie purchased a bargain coffin ahead of time and requested permission to store it in the building basement prior to Frank’s death.

Frank Kupczyk died in April 1921. His death was initially ruled natural, and Tillie was once again left a widow.

The Husband Who Survived: Joseph Klimek

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The Husband Who Survived: Joseph Klimek

Before 1921 ended, Tillie married Joseph Klimek. Within months of the marriage, Joseph suffered the familiar progression of severe stomach ailments. However, suspicious family members intervened and moved him to a hospital, separating him from Tillie’s home-cooked meals.

Hospital physicians tested Joseph and discovered arsenic poisoning. Because Joseph survived, law enforcement had living medical proof of foul play. Tillie Klimek was arrested in October 1922.

Exhumations and Arsenic Discoveries

Following Tillie’s arrest, investigators exhumed the bodies of her deceased husbands:

Name	Date of Death	Exhumation Findings
Frank Kupczyk	April 1921	Lethal levels of arsenic detected; soil testing ruled out environmental contamination.
Joseph Ruszkowski	May 1914	Arsenic detected in remains.
Joseph Mitkiewicz	January 1914	Arsenic detected in remains.

The “Bluebeard Clique” and Nellie Koulik

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During interrogation, Tillie implicated her cousin, Nellie Koulik, claiming Nellie had assisted her in purchasing rat poison containing arsenic. Police subsequently arrested Nellie and investigated deaths within her extended family.

Sensationalist press outlets quickly coined the term “The Bluebeard Clique”, painting Tillie as the “high priestess” of a secret ring of women poisoning husbands for life insurance payouts. Dubbed the “Merry Murderess of Cook County Jail” due to her cheerful demeanor in custody, Tillie became a frequent subject of newspaper coverage.

However, prosecutors never proved the existence of a widespread organized ring. Nellie Koulik went to trial separately and was acquitted when prosecutors could not establish her involvement beyond a reasonable doubt.

The 1923 Trial and Verdict

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In March 1923, Tillie Klimek went on trial specifically for the murder of Frank Kupczyk. Prosecutors focused on concrete evidence:

1. Toxicology results confirming high levels of arsenic in Kupczyk’s exhumed remains.
2. Testimony from the landlady regarding the pre-purchased coffin and mourning clothes.
3. Corroborating medical evidence from Joseph Klimek’s non-fatal arsenic poisoning.

Although Tillie maintained her innocence on the stand, the jury returned a guilty verdict. Escaping the death penalty, she was sentenced to life imprisonment at Joliet Correctional Center in 1923. She remained incarcerated until her death in November 1936.

Separating Fact from True Crime Legend

In modern retellings, Tillie Klimek is often described as a psychic murderer who foretold deaths through visions. Historical records reveal a simpler, far more sinister reality:

• Tillie did not predict the future; her foreknowledge stemmed from administering arsenic directly in small, repeated doses.
• While headlines linked her to nearly 20 illnesses or deaths, she was tried and convicted for one murder (Frank Kupczyk).
• The survivor, Joseph Klimek, provided the crucial breakthrough that exposed the arsenic trail.

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Looking for more historical deep dives? Listen to the full audio episode on Her Strange Hour hosted by Ivy Monroe.

If you found this article interesting you would definitely be interested in this article —> click here… This story is about a town of female killers who all poisoned their husbands with the same deadly poison that Tillie used.