All episodes of this podcast are fully researched, written, and edited by our human production team. The final audio is generated using text-to-speech technology to deliver consistent narration quality and listening experience.

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A 1982 nationwide crisis erupted when cyanide-laced over‑the‑counter pain relievers caused multiple sudden deaths, sparking panic and a massive product recall. The investigation revealed tampered capsules, highlighted gaps in packaging security, and led to groundbreaking tamper‑evident standards and stricter regulations. Despite extensive forensic work and numerous suspects, the perpetrator remains unidentified, leaving the case an enduring mystery in product safety and criminal history.

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