10. February 9 Killer
In both cases, the women were strangled, there were no signs of forced entry, and no missing property was ever recovered. The killer was immediately dubbed the “February 9 Killer.” Though they now have the killer’s DNA on file, no match has ever been found.
9. The Boston Strangler?
His confession was also made while in a mental institution and was ruled inadmissible. Most investigators believe that there was more than one killer, and DNA evidence has exonerated DeSalvo of at least one of the murders to which he confessed. Many believe he made the admission for the fame. That means that there is a good possibility that this vicious murderer is still out there.
8. The Mad Butcher of Kingsbury Run
Some victims were not found for months and most could never be identified – including some because no heads were ever found to match with bodies. Photos and death masks of some of the victims are housed in an exposition open to the public at the Cleveland Police Museum. The case remains unsolved.
7. The Moonlight Murders
Local residents were terrified and many nailed their windows shut and purchased firearms. Two survivors described the killer as a tall man with a white sack over his head, with holes cut out for his eyes. Many suspects were rounded up, some confessed, but no evidence was ever found to corroborate any of their statements.
6. The Hinterkaifeck Murders
Evidence points to the killer staying on the farm over the weekend after committing the murders, as fresh food was eaten in the kitchen, the cattle were fed daily, and smoke from the fireplace was seen by neighbors, however no valuables were taken. Despite many theories, the murders have never been solved.
5. The Axeman of New Orleans
The bloody Axeman killed viciously and his victims included a young girl being carried in her mother’s arms. Despite the killer almost always leaving a bloody axe behind at the scene, his identity was never discovered, and the killings just stopped.
4. Dyatlov Pass Deaths
When their frozen bodies were found scattered throughout the snow bluff, some appeared unharmed but others had fractured skulls, broken ribs, and one was missing her tongue. Once recovered, two of the bodies mysteriously contained trace levels of radiation. Russian investigators closed the case citing a “compelling unknown force” as the cause of the deaths.
3. The Black Dahlia
Due to the lack of blood at the scene, it was determined she had been killed elsewhere and then left, posed in the park with her arms above her head. It was also determined that she died from the cuts to her face resulting in massive blood loss as well as shock from an apparent concussion. Neither the killer nor the motive was ever found.
2. The Zodiac Killer
To date, only one of the four cryptograms has been deciphered. Despite evidence including physical descriptions, fingerprints, and the letters, Zodiac was never caught. The case remains unsolved and Zodiac goes down in history as the most notorious murderer in the United States who was never caught.
1. Jack the Ripper’s Identity
Jack would encounter the women – all prostitutes – in the middle of the night, slashing their throats and proceeding to savagely mutilate their bodies, sometimes removing their organs. His precision in doing so led some to believe he had medical training. Jack sent several letters taunting the police, one of which even included a small piece of a human kidney. Over the years there have been several suspect theories, but the Ripper’s identity remains unknown.