Add a link to an article or other coverage of the mystery if you can.
Here's one: The Max Headroom signal hijacking incident
In 1987, two individuals hijacked television signals of two TV stations at night and broadcasted creepy footage of someone wearing a Max Headloom mask and costume to viewers. They were never identified.
Nurse from Canada who reported to police that she was being stalked and harassed by someone she didn't know. She made a bunch of reports over 7 years but police never found any evidence of stalking. She then disappeared in 1989 and was found dead two weeks later tied up and choked. Cause of death was found to be a drug overdose.
Police suspected she staged the disappearance and being tied up/choked and actually committed suicide, since she had a history of depression and prior police investigations into a stalker always turned up dry.
There is some evidence suggesting she was murdered like the fact the blood in her body settled in the opposite side of the one she was found laying on, indicating she was relocated after she died.
We still don't know the exact circumstances leading up to her death.
According to investigators she injected herself with a massive dose of a fast acting drug then threw the injector away, did something with her shoes (no explanation as to what, she was barefoot and her feet were clean so must have been wearing some if she walked there herself and her shoes were not found at the scene), and then tied herself up in a painful and awkward position in the seconds it would take for the drug to affect her movements and render her unconscious.
Those investigators were working hard to deny that she had been being stalked for years while they had blamed and accused her. They didn't even notice when they passed the point of incredulity.
I am intrigued about this whole UAP whistleblower guy named David Grusch.
Is it Psyops, confused officials, a business model (to sell books, speak on conferences)?
In my home country, there are two big cases. First one is the famous Madeleine McCann case and the second is Rui Pedro case, a portuguese 11y old boy was last seen riding a bycicle near home. Both kids never happeared. More details in following links:
https://en.m.wikipedia.org/wiki/Disappearance_of_Madeleine_McCann
https://en.m.wikipedia.org/wiki/Rui_Pedro_Teixeira_Mendon%C3%A7a
The second case is infuriating.
Mendonça was 11 years old
A prostitute, Alcina Dias, confirmed that [Afonso Dias] had taken Mendonça to see her on the day he disappeared. [Afonso Dias] allegedly drove up to see her in his car and asked her if she was working. When she assented, he offered to pay her to have sex with Mendonça.
and later
police forces raided alleged members of an international child pornography ring known as the Wonderland Club. The operation was code-named Operation Cathedral and resulted in the confiscation of 750,000 images and videos depicting 1,263 different children. Mendonça was among the few children (16 only) that could be identified. However, his whereabouts remain unknown and police suspect that he was murdered by his abductors after being abused on camera for other members of the paedophile ring.
Top it off with the fact that the police refused to take his disappearance seriously initially and just assumed he was lost or injured and would eventually turn up.
Fucked up.
It really is. Police never confirmed that it was in fact Rui Pedro's photos, but it's the most believed theory here. That he was caught in child trafficking and murdered.
Probably not quite what you were expecting, but:
https://en.wikipedia.org/wiki/Fermi_paradox
The Fermi paradox is the discrepancy between the lack of conclusive evidence of advanced extraterrestrial life and the apparently high likelihood of its existence. As a 2015 article put it, "If life is so easy, someone from somewhere must have come calling by now."
The argument can be summarized like this: it seems likely that intelligent life has evolved elsewhere in the universe -- the universe is a big place. It took a very long time for this evolution to occur in the only case we know of -- it took us billions of years. One can reasonably assume that some supposed alien intelligent life out there will evolve more quickly, others less. Statistically, we should assume that we are most-likely about in the middle in terms of our rate of evolution -- it would be unexpected for us to be the very fastest-evolving intelligent life in the universe. It takes time to travel between the stars, but as best we can tell, not very long compared to the kind of time required to evolve -- once a civilization is able to do travel in space, we would expect it to spread, and do so quickly compared to the time required to evolve. So if one guesses that maybe half of alien intelligent life evolved more quickly than we did, a lot of it should have had a lot of time to spread throughout the universe by now.
But we have seen nothing that appears to be alien intelligent life on Earth or elsewhere. How can this be?
There are some proposed answers to the paradox that are a bit disturbing.
It is the nature of intelligent life to destroy itself
This is the argument that technological civilizations may usually or invariably destroy themselves before or shortly after developing radio or spaceflight technology. The astrophysicist Sebastian von Hoerner stated that the progress of science and technology on Earth was driven by two factors—the struggle for domination and the desire for an easy life. The former potentially leads to complete destruction, while the latter may lead to biological or mental degeneration. Possible means of annihilation via major global issues, where global interconnectedness actually makes humanity more vulnerable than resilient, are many, including war, accidental environmental contamination or damage, the development of biotechnology, synthetic life like mirror life, resource depletion, climate change, or poorly-designed artificial intelligence. This general theme is explored both in fiction and in scientific hypothesizing.
We are right about at that point in technological development ourselves. We cannot yet travel to the stars, but we can travel in space, and reaching the stars does not seem to present fundamentally unsolvable challenges. If that answer is the correct one, then we would expect such a destructive event to occur to humanity before long.
It is the nature of intelligent life to destroy others
Another hypothesis is that an intelligent species beyond a certain point of technological capability will destroy other intelligent species as they appear, perhaps by using self-replicating probes. Science fiction writer Fred Saberhagen has explored this idea in his Berserker series, as has physicist Gregory Benford and, as well, science fiction writer Greg Bear in his The Forge of God novel, and later Liu Cixin in his The Three-Body Problem series.
A species might undertake such extermination out of expansionist motives, greed, paranoia, or aggression. In 1981, cosmologist Edward Harrison argued that such behavior would be an act of prudence: an intelligent species that has overcome its own self-destructive tendencies might view any other species bent on galactic expansion as a threat. It has also been suggested that a successful alien species would be a superpredator, as are humans.
I think reading up on this has made me more appreciate the profoundness of that Arthur C. Clarke quote
Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying
The possibility of being alone is not just terrifying in and of itself. Its horror is also in mulling over why we might be alone.
the asha degree case is one that occupies my mind a lot. not necessarily super disturbing but if we have all the information then asha had very little reason to pick up and leave.
Oh yeah, that one haunts me. Such an unusual, eerie case. I hope her family gets real answers someday. What a nightmare.
yeah, me too. i'm not one to cast suspicion on the family but personally i think there was an issue close to home that caused her to take off. not sure what though.