30 Famous Historical Mysteries That Continue to Baffle Us

By Jack Ripley | October 30, 2023

Who Is Responsible For The Chicago Tylenol Murders?

This gallery of 30 famous unsolved mysteries from history will bring you across the globe and through the centuries, introducing you to enigmas that have puzzled scholars, intrigued investigators, and captured the public's imagination. From the ghostly murmurs of vanished civilizations to chilling tales of inexplicable events, these mysteries have withstood the onslaught of time, maintaining their veil of secrecy. As you explore, remember: every mystery is a door waiting to be opened, a question yearning for an answer. Will you be the one to solve the unsolvable? Let your journey into the heart of history's greatest mysteries begin...

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In the fall of 1982, the city of Chicago was gripped by a wave of fear unlike any it had experienced before. It all started on September 29, when 12-year-old Mary Kellerman complained of a cold and took a Tylenol capsule. Within hours, she tragically died. That same day, 27-year-old Adam Janus also unexpectedly died after taking Tylenol for minor chest pain. When his brother and sister-in-law took pills from the same bottle while mourning his loss, they too suddenly fell ill and passed away. Each victim had consumed Extra-Strength Tylenol shortly before their demise. Police swiftly discovered that the Tylenol capsules they'd ingested had been laced with deadly cyanide, causing panic to surge throughout the city. In the following days, three more people died under similar circumstances, bringing the death toll to seven. Terrified consumers across the country purged their medicine cabinets. The manufacturer, Johnson & Johnson, initiated a massive, unprecedented recall of approximately 31 million bottles of Tylenol, costing them over $100 million. The investigation that followed was exhaustive, but despite extensive efforts, the perpetrator was never found.  Authorities discovered tampered Tylenol bottles in various stores, suggesting the killer had purchased bottles, poisoned them, and returned them to the shelves. Theories have swirled over the years, with various suspects investigated and subsequently cleared. The chilling fact remains: the Tylenol Murders were never solved, and the cyanide poisoner remains a specter in the annals of American crime.

Who And Where Is D.B. Cooper?

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(Wikimedia Commons)

"D.B. Cooper" is the byname for the unidentified person responsible for the 1971 hijacking of Northwest Orient Airlines Flight 305, although the pseudonym the hijacker went by was actually "Dan Cooper". Claiming to have a bomb, Cooper demanded $200,000 in ransom and parachuted into the night, never to be seen again. Due to the weather at the time and the parachute landing zone, many speculate that Cooper did not survive the drop. On the other hand, over 1000 potential suspects have been processed by the FBI - but with barely more than a composite sketch to go on, who can be sure?