In this day and age, it's hard to find material that will genuinely unnerve people. Almost everyone is a know-it-all, and honestly, everyone thinks they're tough as nails.
But I'm willing to guess that most people haven't seen these completely spooky articles. They're absolutely chilling.
1. Albert Fish
Albert Fish, also known as "The Boogeyman," was a cannibal and child rapist who claimed to have harmed children in every state.
For over 90 years, the story of Hinterkaifeck Farm has been shrouded in mystery. Six inhabitants were murdered on this farm, and no one knows exactly what happened.
3. Armin Meiwes
Meiwes found a person to voluntarily let him murder him and eat his corpse. Before he murdered the victim, though, he severed the man's penis and shared the "meal" with him.
This man is Jules Cotard, and his mental illness is known as "walking corpse syndrome." The sufferer believes that he or she is dead and is still walking the Earth. People around the world fall victim to this disorder every year.
This is thought to be one of the most haunted places in the world. A hospital that treated victims of tuberculosis, this asylum saw many deaths, including the suicide of a nurse who hung herself on the premises.
6. D.B. Cooper
This man hijacked a plane, extorted ransom money, and jumped out of the plane with a parachute. He was never identified, and it remains the only unsolved aviation piracy plot in American history.
Nine hikers mysteriously died on this hiking path. What is most bizarre about this is that it was determined that their tent was ripped from the inside out, and all of their bodies were found facing down. None showed signs of struggle.
This boy was lured away from a mall by two 10-year-olds who mutilated his body and face so horrifically that an autopsy couldn't determine his cause of death. The boys never gave an explanation for their actions.
A little boy's body was found in a cardboard box in Philadelphia back in 1957. He was never identified because his body and face were battered beyond recognition.
This woman's actions were called "the single worst crimes perpetrated against an individual in Indiana's history." She murdered a teenager named Sylvia Likens with the help of Likens' friends, boyfriend, and sister.
This deadly fire killed almost 600 people in Chicago. What makes this so horrifying is that an inspector came to the theater days earlier and told the owners that the building was ill-equipped to handle a fire.
The McMartin family ran a preschool where several acts of child abuse and sexual misconduct occurred.
This woman's body was found in a hotel's water tank after complaints that the water tasted strange. She had gone missing weeks before that, and when the inspector came to check on the tank, they found her body inside.
This is a video that was uploaded onto YouTube that is just downright spooky. In it, a man walks around an abandoned building wearing a plague doctor's mask. Apparently, the video holds a secret message that Redditors are still trying to decode.
15. H.H. Holmes
This man built what is now known as the "Murder Hotel." The building was full of secret passageways and tunnels that Holmes used to transport the bodies of the many victims he claimed while he owned the building.
These two 19-year-olds went on murdering sprees, filming almost all of their kills. They were reckless beyond belief, but they never revealed their true motives.
17. Unit 731
This was the site of many of the human experiments carried out by Nazis during World War II. It is believed that roughly 250,000 people died in this facility.
18. Carl Tanzler
This doctor attempted to treat a patient with tuberculosis, fell in love with that patient, and after she died, lived with her corpse in his house for nearly a decade.
Well, I don't know about you, but I'm going to have a hard time sleeping tonight. How could people do such horrifying things? You think you know humanity's limits, but people never cease to shock and amaze when it comes to brutal violence.