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Story summary
- Idaho detectives identified Dr. Mathew Francis Betkouski as the “unknown wanderer” who died in Boise, December 1982.
- Betkouski’s suicide used sodium cyanide, whereas the 1982 Chicago Tylenol murders involved potassium cyanide.
- Idaho police said they have no evidence Betkouski was in Chicago during the Tylenol killings.
- Former Illinois State Police Director Jeremy Margolis called the alleged link “utter nonsense” and said investigators cleared Betkouski.