Established journalism
How the Tylenol Murders of 1982 Changed the Way We Consume Medication
PBS NewsHour
Where this source supports the record
Each entry separates the article’s editorial relevance note from its exact, section-level claims. A bibliography link without a direct claim is labeled plainly.
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Historic crimes & investigations · 29 September–October 1982Open article references →
The Chicago Tylenol Murders
Chicago metropolitan poisoning and investigation area · United States
Why editors use it hereIndependent historical synthesis of the deaths, investigation, packaging reforms, and enduring mystery.
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Quick read
Beginning on 29 September 1982, seven people in the Chicago area died after taking Extra-Strength Tylenol capsules filled with cyanide.
Reviewed 26 July 2026 -
Trigger and conditions
Twelve-year-old Mary Kellerman died after taking a capsule; postal worker Adam Janus died later that day, and two relatives died after taking capsules from his bottle while grieving.
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Uncertainty
The deaths and cyanide contamination are established, but who altered the capsules, where, and why remain unknown.
Reviewed 26 July 2026 -
Why it matters
A small number of altered objects changed the physical language of nearly every medicine package.
Reviewed 26 July 2026
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Quick read