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The original was posted on /r/todayilearned by /u/efequalma on 2024-11-12 03:55:01+00:00.

Original Title: TIL in 1982, 7 people in the Chicago area died after ingesting Tylenol capsules laced with cyanide. James William Lewis sent an extortion letter to Johnson & Johnson, demanding $1 million to “stop the killings.” While he was convicted of extortion, he was never charged with the murders.