60 Unsolved Mysteries That Will Haunt You

By Sophia Maddox | November 27, 2023

The Strange Disappearance of D.B. Cooper

The 19th and 20th centuries had several events that investigators find baffling, and people worldwide still wonder about them. These events range from unexplained sightings, mysterious disappearances, and unsolved crimes that still leave people puzzled. These mysteries have created several theories and legends that people continue to find fascinating.

In this article, we will examine some of the most popular and mysterious unsolved cases from recent history, such as Bigfoot, Loch Ness Monster, Jack the Ripper, the Phoenix Lights, the O.J. Simpson case, the D.B. Cooper hijacking, the Zodiac Killer, Stonehenge, and the mysterious Wow! Signal. We will go through the theories and evidence uncovered so far and understand why these cases continue to intrigue us. If you love the unknown and enjoy a good mystery, join us on this discovery journey.

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On Wednesday, Nov. 24, 1971, a mysteriously normal man named Daniel Cooper bought a one-way ticket on Northwest Airlines from Portland, Oregon to Seattle, Washington. He was in his mid-40s, wore a suit, an overcoat, brown shoes, a white shirt, and a black tie. He carried a briefcase and a brown paper bag. Before takeoff, he ordered a drink and gave a note to a flight attendant saying he had a bomb.

The note demanded $200,000 in cash, four parachutes, and a fuel truck to refuel the plane. After the demands were met, Cooper let some passengers and crew off the plane but kept some on board. During the flight, he put on sunglasses and then jumped out of the plane with two parachutes and the money. He was never found.

Despite years of searching, authorities have not been able to identify Cooper or find out what happened to him. The case is still considered one of the greatest mysteries in the history of the FBI and the United States.

Chicago Tylenol Murders 

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(Getty Images)

In 1982, seven people in the Chicago area tragically died after ingesting Tylenol pills laced with cyanide. The victims, including a 12-year-old girl and members of the same family, had taken the medication and then collapsed and died shortly after. Initially, investigators were baffled, but a Cook County investigator named Nick Pishos noticed that the Janus family’s Tylenol bottle and Mary Kellerman’s bottle had a control number in common: MC2880. Edmund Donoghue, a deputy medical examiner, then discovered that both bottles smelled like bitter almonds, a tell-tale sign of cyanide. The blood tests confirmed that all seven victims had ingested a lethal dose of cyanide. After contacting Johnson & Johnson, Tylenol’s parent company, the manufacturer recalled over 31 million bottles of Tylenol, issued warnings, offered a $100,000 reward for information on the perpetrator, and replaced recalled bottles. The company’s precautions cost over $100,000,000, and the tragedy resulted in the invention of safety seals on medicine bottles that are still in use today. To this day, the perpetrator has not been charged or convicted.