I always thought that the Dyaltov Pass Incident was incredibly creepy
https://en.wikipedia.org/wiki/Dyatlov_Pass_incident
9 hikers ended up dead, their tents had been torn open from the inside and some of them were barefoot as if fleeing in terror. Two victims had skull fractures, both classed as being caused by a force much greater then what a human could generate. One of the victims was missing her tongue. Forensic tests showed that their clothing had a high level of radiation.