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Seven people died after taking poisoned Tylenol in 1982, and though no one was ever charged in the killings, packaging for over-the-counter medicine across the industry was revamped.
The poisoning murders of seven Chicago residents in 1982 horrified the country - and the world at large - because they involved Tylenol, the best-selling non-prescription pain reliever at the time.
Someone filled capsules of an over-the-counter painkiller with deadly cyanide and seven people died.
The prime suspect in the Tylenol poisonings of 1982, which killed seven people in the Chicago area, died at his home on Sunday, according to Massachusetts police.
In 1982, seven people died after taking Tylenol painkillers. Then the manufacturer Johnson & Johnson received a ransom note.