Photo of Mary Kellerman
ColdHistorical Cold Case

The Chicago Tylenol Murders

Victim
Mary Kellerman, 12
Location
Chicago metropolitan area, Illinois
Incident date
September 29, 1982
Case ID
UV-000177
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Case Overview

Seven people died in the Chicago area in 1982 after taking cyanide-contaminated over-the-counter capsules. The perpetrator has not been identified.

Seven people died after taking cyanide-contaminated Tylenol capsules in the Chicago metropolitan area in 1982. The killings remain unsolved. Theories mentioned in media or documentaries are not established police findings.

About Mary Kellerman

Victim of the 1982 Chicago Tylenol poisonings.

Verified Facts Editor reviewed

Each fact below has been reviewed by an editor and cites at least one source. Community theories and allegations are never shown here.

No verified facts have been published for this case yet.

Timeline

  1. The 1982 poisonings come to light[2]

    Seven people in the Chicago area died in 1982 after ingesting cyanide-contaminated Tylenol capsules. Investigators treated the deaths as homicides. The identity of the perpetrator remains unconfirmed.

  2. 1983 federal anti-tampering legislation[2]

    The Federal Anti-Tampering Act was enacted on October 13, 1983, in response to the 1982 Tylenol poisonings.

Documents

No public documents have been approved for this case.

Photos & Videos

Archival collage associated with the victims of the 1982 Chicago Tylenol poisonings. — Image provided by site owner
Photo related to Mary Kellerman

Community Discussions

Threaded discussions open in the community release. Posts will be labeled as opinion, question, hypothesis or information so they are never confused with verified facts.

Research Submissions

Community-submitted sources and corrections will appear here after editorial review. Unreviewed submissions are never displayed as facts.

Latest Updates

No verified updates have been published yet.

Sources

  1. Chicago Tylenol murders — documentary / historical coverage
    People
  2. FBI Chicago History — 1982 Tylenol Investigation
    Federal Bureau of Investigation
  3. The Chicago Tylenol Murders
    Chicago History Museum
  4. PainKiller — The Tylenol Murders
    CBS Chicago

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