History Main / StockUnsolvedMysteries

* ''WebVideo/BuzzFeedUnsolved'' hosts Ryan and [[ThePeteBesr Brent]], the latter since been replaced by Shane, have discuss many of the ones listed in the description as part of the True Crime and Supernatural portions of the show, mainly the facts and their theories surrounding them.

* ''Wiki/SCPFoundation'' has a ton of {{Historical Domain Character}}s and {{Public Domain Artifact}}s in storage, including Cain, Abel, and the suitcase that ate D.B. Cooper. Others can't be kept in storage, such as [[https://en.wikipedia.org/wiki/Centralia_mine_fire the fire giant Surtr buried underneath Pennsylvania]] [[https://en.wikipedia.org/wiki/Bloop or the noisy marine arthropod somewhere between 2,000 and 8,000 kilometers long]].

* D.B. Cooper, also known as Dan Cooper, who vanished on November 24, 1971 with $200,000 after hijacking a 727 and parachuting from the stairs in the tail. The most likely hypothesis are a) he died in the parachuting attempt (which is the official opinion of the FBI, who suspended the investigation in 2016 after 45 years of searching), or b) he survived the jump and simply went back to his old job and old life as if nothing had happened--Cooper was certainly nondescript enough to escape notice. Over the decades, many have searched his projected landing site for traces of him. It is widely believed that the March 1980 eruption of nearby Mount St. Helens may have obliterated any remaining physical evidence, as none has been found since then. The most intriguing evidence is how some of the marked banknotes were found buried in the sand of a beach miles from the projected landing site just ''weeks'' before the eruption, by a young boy... but not only was the flow of many nearby rivers running in the ''opposite'' direction of the proposed landing site (making it unlikely they had simply floated on the waters to the beach before being buried in the sediment unless the FBI messed up the projected landing site), the rubber bands that bound them couldn't have lasted even a year in open air or water for the time it would sediment to build up over them naturally, suggesting they had been deliberately buried possibly only a few years earlier. In 2019, the FBI revealed that, three hours after Cooper jumped, a burglary was reported at a grocery store within the projected landing radius, with the only items stolen being survival gear such as beef jerky and gloves.

* D.B. Cooper, also known as Dan Cooper, who vanished on November 24, 1971 with $200,000 after hijacking a 727 and parachuting from the stairs in the tail. The most likely hypothesis are a) he died in the parachuting attempt (which is the official opinion of the FBI, who suspended the investigation in 2016 after 45 years of searching), or b) he survived the jump and simply went back to his old job and old life as if nothing has happened--Cooper was certainly nondescript enough to escape notice. Over the decades, many have searched his projected landing site for traces of him. It is widely believed that the March 1980 eruption of nearby Mount St. Helens may have obliterated any remaining physical evidence, as none has been found since then. The most intriguing evidence is how some of the marked banknotes were found buried in the sand of a beach miles from the projected landing site just ''weeks'' before the eruption, by a young boy... but not only was the flow of many nearby rivers running in the ''opposite'' direction of the proposed landing site (making it unlikely they had simply floated on the waters to the beach before being buried in the sediment unless the FBI messed up the projected landing site), the rubber bands that bound them couldn't have lasted even a year in open air or water for the time it would sediment to build up over them naturally, suggesting they had been deliberately buried possibly only a few years earlier. In 2019, the FBI revealed that, three hours after Cooper jumped, a burglary was reported at a grocery store within the projected landing radius, with the only items stolen being survival gear such as beef jerky and gloves.

* D.B. Cooper, also known as Dan Cooper, who vanished on November 24, 1971 with $200,000 after hijacking a 727 and parachuting from the stairs in the tail. The most likely hypothesis are a) he died in the parachuting attempt (which is the official opinion of the FBI), or b) he survived the jump and simply went back to his old job and old life as if nothing has happened--Cooper was certainly nondescript enough to escape notice. Over the decades, many have searched his projected landing site for traces of him. It is widely believed that the 1980 eruption of nearby Mount St. Helens may have obliterated any remaining physical evidence, as none has been found since then. The most intriguing evidence is how some of the marked banknotes were found buried in the sand of a beach miles from the projected landing site in 1980 by a young boy... but not only was the flow of many nearby rivers running in the ''opposite'' direction of the proposed landing site (making it unlikely they had simply floated on the waters to the beach before being buried in the sediment unless the FBI messed up the projected landing site), the rubber bands that bound them couldn't have lasted even a year in open air or water for the time it would sediment to build up over them naturally, suggesting they had been deliberately buried possibly only a few years earlier.

* UsefulNotes/FermatsLastTheorem

* Bible John, unidentified serial killer active in Glasgow in the late 1960s. Many people believe Bible John and the convicted serial killer Peter Tobin are one and the same, but it has yet to be proven at trial.

** ''Anime/{{Spriggan}}''. In "The Forgotten Kingdom", ARCAM discover the wreck of the Eldridge among other wrecked ships from throughout history on the Island of Ghosts.

** ''Anime/{{Spriggan}}''. In "The Forgotten Kingdom", ARCAM discover the wreck of the Eldridge on the Island of Ghosts.

* In 1949, a young actress named Jean Spangler went missing in Los Angeles. She left her daughter with her sister in law one evening, saying she was going to meet her ex-husband to pick up a child support check then to work a night shoot. She was seen waiting on someone at the farmer’s market for several hours but the last time anyone spoken to her was later on that night when she called home to tell her daughter good night and her sister in law that she was going to work longer than expected and to not wait up on her. Even 70 plus years on, no one has ever managed to find her body or even a prime suspect. Two days after she was reported missing, her ripped purse was found in Griffith Park with a note written to a Kirk about going to see a Dr. Scott for a procedure while her mother was out of town. Her family and friends didn’t know who Dr. Scott was but her mother said someone named Kirk had picked her up at home a few times but he’d stayed in the car. She’d been working on a movie with Creator/KirkDouglas and when the police questioned him, he admitted that he’d talked to Spangler a few times on set but they believed his story about being out of town when she disappeared. All doctors named Scott in Los Angeles county were questioned but none of them had seen her under her maiden name or married name. Her ex-husband became a suspect as well but he said they hadn’t met that day and his wife backed up an alibi. They leading theory is that she may have died in a botched abortion and her body was dumped in an undisclosed location but that’s just a theory. Other theories range from her being the victim of a serial killer to running away with the mob to being killed by a man she was dating.

** David Fincher's film ''Film/{{Zodiac}}'' strongly suggests that a real suspect in the officially unsolved Zodiac Killings was the guilty party.

* ''Wiki/SCPFoundation'' has a ton of {{Historical Domain Character}}s and {{Public Domain Artifact}}s in storage, including Cain, Abel, and the suitcase that ate D.B. Cooper.

* D.B. Cooper, also known as Dan Cooper, who vanished on November 24, 1971 with $200,000 after hijacking a 727 and parachuting from the stairs in the tail. The most likely hypothesis are a) he died in the parachuting attempt, or b) he survived the jump and simply went back to his old job and old life as if nothing has happened--Cooper was certainly nondescript enough to escape notice. Over the decades, many have searched his projected landing site for traces of him. It is widely believed that the 1980 eruption of nearby Mount St. Helens may have obliterated any remaining physical evidence, as none has been found since then. The most intriguing evidence is how some of the marked banknotes were found buried in the sand of a beach miles from the projected landing site in 1980 by a young boy... but not only was the flow of many nearby rivers running in the ''opposite'' direction of the proposed landing site (making it unlikely they had simply floated on the waters to the beach before being buried in the sediment unless the FBI messed up the projected landing site), the rubber bands that bound them couldn't have lasted even a year in open air or water for the time it would sediment to build up over them naturally, suggesting they had been deliberately buried possibly only a few years earlier.

* D.B. Cooper, also known as Dan Cooper, who vanished on November 24, 1971 with $200,000 after hijacking a 727 and parachuting from the stairs in the tail. The most likely hypothesis are a) he died in the parachuting attempt, or b) he survived the jump and simply went back to his old job and old life as if nothing has happened--Cooper was certainly nondescript enough to escape notice. Over the decades, many have searched his projected landing site for traces of him - it is widely believed that the 1980 eruption of Mount St. Helens may have obliterated any remaining physical evidence - as none has been found since then. The most intriguing evidence is how some of the marked banknotes were found buried in the sand of a beach miles from the projected landing site in 1980 by a young boy...but not only was the flow of many nearby rivers running in the ''opposite'' direction of the proposed landing site (making it unlikely they had simply floated on the waters to the beach before being buried in the sediment unless the FBI messed up the projected landing site), the rubber bands that bound them couldn't have lasted even a year in open air or water for the time it would sediment to build up over them naturally, suggesting they had been deliberately buried possibly only a few years earlier.

* D.B. Cooper, also known as Dan Cooper, who vanished on November 24, 1971 with $200,000 after hijacking a 727 and parachuting from the stairs in the tail. The most likely hypothesis are a) he died in the parachuting attempt, or b) he survived the jump and simply went back to his old job and old life as if nothing has happened--Cooper was certainly nondescript enough to escape notice. Over the decades, many have searched his projected landing site for traces of him - it is widely believed that the 1980 eruption of Mount St. Helens may have obliterated any remaining physical evidence - as none has been found since then. The most intriguing evidence is how some of the marked banknotes were found buried in the sand of a beach miles from the projected landing site in 1980 by a young boy...but not only was the flow of many nearby rivers running in the ''opposite'' direction of the proposed landing site (making it unlikely they had simply floated on the waters to the beach before being buried in the sediment), the rubber bands that bound them couldn't have lasted nearly a decade in such conditions, suggesting they had been deliberately buried possibly only a few years earlier.

** In one ''ComicStrip/{{Dilbert}}'' comic, [[http://dilbert.com/strip/1991-01-17 Dogbert claims to have Cooper's remains]]. "He learned that you should never get your parachutes from the same people you're robbing."

* D.B. Cooper, also known as Dan Cooper, who vanished on November 24, 1971 with $200,000 after hijacking a 727 and parachuting from the stairs in the tail. The most likely hypothesis are a) he died in the parachuting attempt, or b) he survived the jump and simply went back to his old job and old life as if nothing has happened--Cooper was certainly nondescript enough to escape notice. Over the decades, many have searched his projected landing site for traces of him - it is widely believed that the 1980 eruption of Mount St. Helens may have obliterated any remaining physical evidence - as none has been found since then. The most intriguing evidence is how some of the marked banknotes were found buried in the sand of a beach miles from the projected landing site in 1980 by a young boy...but the rubber bands that bound them couldn't have lasted nearly a decade in such conditions, suggesting they had been deliberately buried possibly only a few years earlier.

* D.B. Cooper, also known as Dan Cooper, who vanished on November 24, 1971 with $200,000 after hijacking a 727 and parachuting from the stairs in the tail. The most likely hypothesis are a) he died in the parachuting attempt, or b) he survived the jump and simply went back to his old job and old life as if nothing has happened--Cooper was certainly nondescript enough to escape notice. Over the decades, many have searched his projected landing site for traces of him - it is widely believed that the 1980 eruption of Mount St. Helens may have obliterated any remaining physical evidence - as none has been found since then.

* The [[https://en.wikipedia.org/wiki/Theft_of_the_Jules_Rimet_Trophy Jules Rimet Trophy]], which was stolen twice, the first time in UK, 1966, where a dog named Pickles found it and became famous, the second time in Brazil, 1983, this time the trophy was never recovered and said to have been melted into gold bars, ironically, a replica was in a safe, but the original was in public exhibition, there are non-fiction and fiction works about it, often showing the trophy still intact.

** During Ted Cruz's unsuccessful 2016 presidential campaign, internet users opposed to the Texas senator jokingly accused him of being the Zodiac Killer, based on noted physical similarities between Cruz and a police sketch of the killer; the joke became popular enough to be referenced on [[Series/TheDailyShowWithTrevorNoah the Daily Show]] and for Creator/LarryWilmore to openly take part in it during the 2016 White House Correspondents' Dinner. Additionally, Donald Trump suggested (in all apparent seriousness) that Cruz' father might have been involved in [[WhoShotJFK the Kennedy assassination.]] [[labelnote:Note]][[Administrivia/RuleOfCautiousEditingJudgment Regardless of your opinions on Ted Cruz]], note that he is physically unable to be the Zodiac Killer. The killings occurred during the 1960s and early 1970s; Cruz was born in 1970.[[/labelnote]]

* In 1949, a young actress named Jean Spangler went missing in Los Angeles. She left her toddler daughter with her sister in law one evening, saying she was going to meet her ex-husband to pick up a child support check then to work a night shoot, never to be seen again. Even 70 plus years on, no one has ever managed to find her body or even a prime suspect. Two days after she was reported missing, her ripped purse was found in Griffith Park with a note written to a Kirk about going to see a Dr. Scott for a procedure while her mother was out of town. Her family and friends didn’t know who Dr. Scott was but her mother said someone named Kirk had picked her up at home a few times but he’d stayed in the car. She’d been working on a movie with Creator/KirkDouglas and when the police questioned him, he admitted that he’d talked to Spangler a few times on set but they believed his story about being out of town when she disappeared. All doctors named Scott in Los Angeles county were questioned but none of them had seen her under her maiden name or married name. Her ex-husband became a suspect as well but he said they hadn’t met that day and his wife backed up an alibi. They leading theory is that she may have died in a botched abortion and her body was dumped in an undisclosed location but that’s just a theory. Other theories range from her being the victim of a serial killer to running away with the mob to being killed by a man she was dating.

* The disappearance of the American labor union leader Jimmy Hoffa in 1975. It's generally accepted that Hoffa was murdered by organized crime, but the location and precise circumstances of his death remain unknown, and his body was never found. The FBI are still looking for his body.

** The movie ''Hoffa'', starring Creator/JackNicholson, suggests that he was [[spoiler:assassinated by one of his mob allies after Hoffa threatened to reveal their connections]].

** ''Film/TheIrishman'' uses the claim that mob associate Frank Sheeran murdered Hoffa for threatening to reveal secrets about the Mafia. Unlike the more fantastic or conspiratorial stories, Hoffa is simply burned in a crematorium so he'll never be found.