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Cases can go cold for a variety of reasons, and when they do, it’s incredibly frustrating. But it looks like we’re going to have to accept that these crimes are never going to be solved.

Jack the Ripper

Two sketches of the murderer (Jack the Ripper) from The Illustrated Police News, 20th October, 1888 Art (Social history) - variousMuseum of London/REX/Shutterstock

The murderer known as “Jack the Ripper” terrorized the Whitechapel area of London back in 1888, killing at least five women and leaving their bodies mutilated in a way that indicated he was more than just a little familiar with human anatomy. Could he have been a surgeon? A mortician? No one knows because he was never caught, and it is unlikely his identity will ever be known. It ranks as one of the world’s most infamous unsolved mysteries. Read on for history’s strangest unsolved mysteries.

The Black Dahlia

This postcard, purporting to be from the slayer of Elizabeth Short Case, was received by the Los Angeles examiner . The card was signed Anonymous/AP/REX/Shutterstock

Twenty-two-year-old Elizabeth Short was found murdered in a vacant lot in Los Angeles on January 15, 1947. She became known as the “Black Dahlia” because of her dark hair, and perhaps a passing reference to a movie, The Blue Dahlia, which had come out the year before. Notwithstanding a lengthy investigation and a roster of more than 150 suspects, her killer was never found, and it’s unlikely the case will ever be solved.

The murders of Nicole Brown Simpson and Ron Goldman

Nicole Brown Simpson, Ron Goldman This file combo photo shows Nicole Brown Simpson, left, and her friend Ron Goldman, both of whom were murdered and found dead in Los Angeles on . Hall of Fame football star O.J. Simpson was charged with the murders of Nicole and Goldman, but a jury later found him not guilty in what some call the uncredited/AP/REX/Shutterstock

A more recent unsolved mystery originating in Los Angeles is who murdered Nicole Brown Simpson and Ron Goldman. In June 1994, the 34-year-old ex-wife of American football star, O.J. Simpson, and 26-year-old Goldman were found stabbed to death outside of Nicole’s home. O.J. was the defendant in the murder trial, but he wasn’t convicted, although he was found liable for the murders in a civil lawsuit. Since civil lawsuits don’t require proof beyond a reasonable doubt, it’s impossible to say whether O.J. was the killer, although he does love to talk about how it would have gone down had he done it…

The death of Betty Shanks

A young guy stands near an electric motorcycle. He is wearing jeans and is holding a helmet.VGstockstudio/Shutterstock

Twenty-two-year-old Betty Shanks was found dead in Brisbane, Australia in 1952, and the case remains one of the oldest and most notorious unsolved murder cases in Queensland, Australia. Australian historian Lyle Reed has been researching the crime for many years and believes he knows what happened: a policeman accidentally killed her with his motorcycle and then staged a cover-up. However, his book about the events remains unpublished, and law enforcement has seemingly swept Reed’s theory under the rug. Love a good true crime story? These 10 true crime books are sure to satisfy.

The murder of Jean Marie Townsend

Winter warm scarf around the neck of the girlAlexey Tikhomirov/Shutterstock

The night of September 14, 1954, 21-year-old Jean Marie Townsend left a party and was found the next morning in South Ruislip, England, strangled by her own scarf. Rumor abounded that an American soldier was responsible, but the police never identified a single suspect. The case was reopened again in 1982, following several anonymous tips, but the case went cold again and remains unsolved. All of these creepy urban legends have an actual real-life grain of truth…

The Love Me Tender murders


Fifteen-year-old Barbara and her 12-year-old sister, Patricia, disappeared into thin air after seeing the film, Love Me Tender in Chicago on December 28, 1956. “What followed was one of the most labor-intensive missing persons cases in Chicago history,” according to crime historian, Ray Johnson. A month later, their bodies were discovered lying naked by the side of a local road. Although the coroner claimed the girls seemingly died from exposure within four hours after their disappearance, his report was widely criticized and takes partial blame for the case having gone hopelessly cold.

The Sims family murders in Tallahassee

the pumpkins for the HalloweenDylan Xu/Shutterstock

On October 22, 1966, Robert and Helen Sims and their daughter, Joy, were found dead in their Tallahassee, Florida home by the Sims oldest daughter, Jeanie, when she returned from a babysitting job. “A massive search was launched to find whomever committed the crime,” a local news station recounts. But the Sims had no enemies, there was no discernible motive to the crime, and although there were suspects, no one was ever charged. It’s hoped that long-stored-away crime-scene evidence will someday provide a lead, as new technology develops.

The case of the men in the lead masks

misty jungle forest near Rio at BrazilMostovyi Sergii Igorevich/Shutterstock

Also in 1966, two electronics repairmen were discovered dead in Rio de Janeiro, Brazil, dressed in suits and wearing lead eye masks—the kind that might be worn to protect from radiation. Beside them was a notebook that included instructions to “be at agreed place,” “swallow capsules,” and “wait for mask signal.” Whether the men swallowed the supposed “capsules,” or what the capsules were supposed to have contained, will never be known because the toxicology report was inconclusive (and probably botched), and despite the physical evidence (or perhaps because of its strangeness), no one has ever been able to figure out what really happened or why.

The Zodiac murders

A San Francisco Police Department wanted bulletin and copies of letters sent to the San Francisco Chronicle by a man who called himself Zodiac are displayed, in San Francisco. Detectives in Northern California are trying to get a DNA profile on the Zodiac Killer to track him down using the same family-tree tracing technology investigators used in the Golden State Killer case. Vallejo police Detective Terry Poyser tells the Sacramento Bee his agency has recently submitted two envelopes that contained letters from the Zodiac Killer for DNA analysis. The Zodiac Killer stabbed or shot to death five people in Northern California in 1968 and 1969. He was dubbed the Zodiac Killer after he sent taunting letters and cryptograms to police and newspapers that included astrological symbols Zodiac Killer DNA, San Francisco, USA - 03 May 2018Eric Risberg/AP/REX/Shutterstock

During the 1960s and 1970s, a person who identified as “the Zodiac” murdered at least five people in the San Francisco area and went on to taunt law enforcement with cryptic communications containing a secret code that to this day has never been cracked. Over the years, suspects came forward, and some still do, but none have ever been charged as the actual Zodiac. Find out the things television crime shows always end up getting wrong.

The hijacking of Flight 305

This undated artist' sketch shows the skyjacker known as D.B. Cooper from recollections of the passengers and crew of a Northwest Airlines jet he hijacked between Portland and Seattle on Thanksgiving eve in 1971. The FBI says it's no longer actively investigating the unsolved mystery of D.B. Cooper. The bureau announced it's Uncredited/AP/REX/Shutterstock

On November 24, 1971, Northwest Airlines Flight 305 was hijacked by a neatly dressed man in his mid-40s. Shortly after takeoff, the man handed a note to a flight attendant demanding $200,000 (worth $1 million dollars today), four parachutes, and a fuel truck standing by in Seattle to refuel the plane on arrival. His name on the passenger manifest was Dan Cooper, although you probably know of him as “DB Cooper,” which is how the media referred to him. Cooper’s demands were met, and the man was never seen again, has never been identified, and probably never will be.


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