Idaho case may be connected to 1982 Tylenol murders in Chicago, officials say

Dr. Matthew Francis Betkouski, who fatally poisoned himself, is a possible suspect in the cyanide-laced Tylenol killings in Chicago in 1982.

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Dr. Matthew Francis Betkouski, who fatally poisoned himself, is a possible suspect in the cyanide-laced Tylenol killings in Chicago in 1982.

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