Idk if this has been posted already or not. 1986 "Missing Boy of Somosierra", Juan Pedro Martínez.
Kid's father is a truck driver. He is tasked with taking a semi carrying a tank of sulfuric acid from Cartagena to Bilbao, and brings his wife and son to make it a little family trip. When they pass through the Somosierra Mountain pass, the truck is reported as driving erratically, and then it crashes. The cabin is destroyed, both parents are killed in the crash, but kid apparently just f*****g *vanishes off the face of the earth*
The "obvious" explanation is he somehow survived the crash and wandered off, but the area was thoroughly searched, and no trace of him was found.
Some have theorized that the sulfuric acid dissolved his body. This wouldn't work either, because it would take longer than that to dissolve a body, and because it would have left traces.
There are a few unexplained and unusual details as well:
* Andrés was apparently a decent driver and in good health, and there was nothing wrong with the truck. Why was he driving so badly, especially through mountains with steep cliffs, with his whole family on board?
* The truck's tachometer recorded a number of unexplained starts and stops that didn't match the traffic patterns. What's that about?
* There were traces of cocaine found, not in the cabin, but inside the tank with the sulfuric acid. Why?
* Unverified reports claim that two people arrived at the scene before emergency services and removed a small package from the cabin. Is this true, and if so, who were they, and what are they doing?
* Almost a year later, in 1987, a boy matching Juan Pedro's description was reported in Madrid. He was accompanying an elderly woman, and they were asking about the location of the US Embassy. Was this Juan Pedro, and if so, who is he with, and why?
