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The unanswered questions consume us...

Some crimes stay a mystery no matter how hard people try to solve them. Who was Jack the Ripper? What happened to Amelia Earhart? Who killed JonBenét Ramsey? Where did D.B. Cooper disappear to? People have been asking some of these questions for years—and while there are a lot of theories, so far, there’s been no luck in solving them. Are certain crimes impossible to solve, or are people not looking in the right places? Are the answers out there for these cold cases?

These stories explore unsolved crimes old and new. Is there evidence lost to history? Are there people out there keeping secrets? Are some people just really good at hiding? These stories feed into innate human curiosity. There’s something unsettling about not having all the answers and it’s only natural to try and find them. Some questions have become impossible to answer, but the stories are fascinating nonetheless.

If you’re as fascinated (and disturbed)  by unsolved true crime cases as we are, start with these stories: 

And when you’re done with those, peruse the stories below.

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What Really Happened to Josh Guimond?

Netflix's Unsolved Mysteries hopes to lead to an answer.

UPDATE: There's Finally Been an Arrest in the Case of the Shocking Delphi Murders

A man has been charged with the murders of Abby Williams and Libby German—but was he working alone?

The Watcher: A Mysterious Stalker Seeded Fear Into a New Jersey Family With a Series of Eerie Letters

Westfield, New Jersey was a picture-perfect town—until one letter writer claimed something was waiting in the walls of 657 Boulevard for "young blood."

Despite Convictions, Questions Remain in the Case of Holly Bobo's Murder

The case against the alleged killers of a young nursing student was as suspicious as the circumstances of her disappearance.

Tarrare: Insatiable, Cannibalistic French Spy 

He ate everything from trash, spoons, eels, snakes—and possibly even human toddlers.

UNSOLVED: The Disappearance of Marie Elizabeth Spannhake

A kidnapper confessed, but was she telling the truth?

These Compelling True Mysteries Have Kept Us Guessing for Years

The April/May Creepy Crate celebrates cold cases and unexplained mysteries from around the world.

UNSOLVED: The Suspicious Death of Kendrick Johnson

The tale of this teenager's death has so many odd facets that closure may never be found.

UNSOLVED: The Disappearance of Kyron Horman

The investigation into the disappearance of one young boy brought several disturbing truths to the surface—but there have been no real leads as to his whereabouts to this day.

Inside the Insidious Mind of the Zodiac Killer

Venture into the encrypted taunts and horrific crimes of one of America's most disturbing serial killers.

UNSOLVED: The Grizzly Case of the Ice Box Murders

A disturbing unsolved murder and the elusive suspect who disappeared without a trace.

The Lineup's Most Disturbing True Crime Bestsellers

The Lineup's community has terrifying taste—these are your most beloved titles.