There are so many terrifying, unsolved mysteries out there that it can be hard to keep up. Luckily, we have online forums where people fill us in on the creepy tales and stories we should read up on if we want to scare the sh*t out of each other.

Here are 15 scary unsolved mysteries that might never be solved. Click on the links in the titles to read more about these topics.

These answers come to us from the Buzzfeed Community.

1. The disappearance of Bobby Dunbar.

“I just find it crazy that we’ll never quite know if the kid who was returned to the Dunbars was really their son or the son of another woman who they won against in court. If that wasn’t Bobby, what happened to Bobby? And if it was Bobby, why did he seem so confused about it?”

2. The Somerton Man.

“The dude from Australia! The Somerton Man! He was found on the beach, dead. All signs pointed to poisoning but they didn’t find anything in the tox report. All the tags in his clothes were cut out, there was no way of identifying him. Then they found a line from a book in his pocket or something. They say he could have been a spy but we’ll probably never know.”

3. The Yuba County Five.

“Five young men went missing in California after seemingly being chased up a mountain in their car. Months later, four of their five bodies were found malnourished, but the fifth has never been found. People think since the men were mentally challenged they were targeted or that the 5th man murdered them, but that theory seems unlikely.”

4. The death of Rebecca Zahau.

https://www.instagram.com/p/6CpRV3TU7n/

“She was found bound and hanged naked off the balcony of her boyfriend’s beachside mansion. There was a mysterious message written in black paint on her bedroom door reading, “She saved him. Can you save her?”

5. The death of the Black Dahlia.

“This one is obviously super well known but the fact that no one knows who the killer is is wild and what was done to her was so brutal and creepy.”

6. The disappearance of Timmothy Pitzen.

https://www.instagram.com/p/Bv4r0EAFm4K/

“Everyone needs to read this case, it is nuts. Amy Fry-Pitzen checked her 6-year-old son out of school and three days later her body was found in a hotel where she had died of apparent suicide. A note was found next to her saying that Timmothy was safe with people who would care for him and he would never be found. They have never been able to find him, or any remains of him.”

7. Australia’s Mr. Cruel.

“Many people have seen the police sketch of the modified balaclava that he wore in one of the kidnappings (the one with white stitches to conceal any potential identifying markers — super creepy!), but his crime spree and its sudden stop is haunting. Its unsolved nature adds more to its overall creepiness.”

8. The 1962 Alcatraz prison break.

“Along with their friend Allen West, they planned to dig a hole using spoons into their cell walls and climb up the walls onto the roof. Using loads of raincoats they also planned to take all their belongings and make a raft and swim away. West never made it as his hole was too small, but the others have still not been found. There are many weird things involved in this story — someone claiming to be Clarence wrote a letter to the police a few years back stating he is alive and that he would tell them where he is if they didn’t arrest him and that the other two have died.”

9. The Lane Bryant murders.

“It happened on a Saturday morning in the southern suburbs of Chicago. A person walked into the store, held people hostage for a short time, and murdered everyone in there. The person got away and was never found. A manager, who wasn’t even scheduled to come in that day, called 911 and just said, ‘Lane Bryant, hurry.’ One person survived the shooting but the person has not been identified. They’re not even sure if the killer was a man or a woman. The 911 call is super chilling.”

10. The disappearance of Susy Tomassi.

“Susy was 73 years old with slight dementia. She owned a restaurant called The Quilted Giraffe with her husband and was known for walking from the restaurant to other stores. One day, she was seen on camera walking away from her restaurant and literally just vanished. Nobody knows what happened. They recently released a video of a person they believe to be Susy, walking through some store alleys and getting into a white pickup truck the exact time she went missing.”

11. The death of Gareth Williams.

“The spy in the duffel bag. His naked remains were found in a duffel bag, padlocked from the outside, in the bath of a safe house. No forensic evidence was found that pointed towards it being an accident, and the key to the padlock was found underneath his body. The official cause of death was ‘probably an accident’ but a KGB agent claims he was killed by the Russian SVR.”

12. The fate of the Sodder children.

“The whole case is quite the rabbit hole with so many lies and cover-ups and unanswered questions. Someone out there has answers! It’s been over 70 years, so if the children survived, they’ve probably passed on now. But I’m still so curious about what happened!”

13. The incident at Dyatlov Pass.

“Nine experienced trekkers were found dead. There was no sign of foul play, but most of them were missing clothes, some of them had extreme injuries, and the tents were ripped open from the inside. It happened over 50 years ago and to this day is still unsolved!”

14. The death of JonBenét Ramsey.

“ARE WE EVER GOING TO FIND OUT WHO DID IT?! Did the mom write the ransom? Why was the random note written at the house? Why did JonBenét have pineapple in her stomach? Who gave her the pineapple? How did the DNA on her clothing get there, who does the DNA belong to? Was she being abused? WHY DOES HER BROTHER SOUND SO CREEPY AND WHY DOES HE SMILE SO MUCH?! Someone in that family is guilty of something. Darnit! It still keeps me up at night.”

15. The disappearance of Amy Bradley.

“She disappeared on a cruise ship and there were rumors that she was trafficked. They found a photo of a really similar looking woman on an escort site!”