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Boise mystery solved. Could it be a break in the infamous 1982 Tylenol killings?

by SALLY KRUTZIG / Idaho Statesman
| September 23, 2026 2:45 PM

A dead man whose identity long remained a mystery in Boise might be responsible for the infamous Chicago Tylenol killings — widely considered one of the greatest unsolved cases in U.S. history. 

One of Boise’s most mysterious cold cases surrounded an unidentified man who died by suicide after taking a fatal dose of cyanide on Dec. 4, 1982, in Boise’s Sacred Heart Catholic Church. Parishioners discovered him under a pew.

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