In September 1982, seven people in the Chicago area died after taking Extra-Strength Tylenol capsules that had been laced with potassium cyanide. The deaths triggered a nationwide panic, with Johnson & Johnson issuing a massive recall of 31 million bottles and introducing tamper-resistant packaging. The perpetrator was never caught, but the incident led to widespread changes in product safety regulations and remains a landmark case of product tampering.

The Tylenol cyanide murders of 1982 have been the subject of numerous poems, songs, and works of true crime literature that explore the vulnerability of modern consumers and the anonymity of urban life. The event's themes of random violence, corporate responsibility, and public fear have resonated with writers who examine the dark side of consumer capitalism. It also serves as a cautionary tale about the fragility of trust in institutions and the products we consume.