The Human Combustion Mystery

http://www.parascience.com/ablaze.htm

This is such a bizarre enigma.

https://www.coasttocoastam.com/guest/arnold-larry-e-5632

It's as if someone or something is going around and occasionally incinerating people.

https://en.wikipedia.org/wiki/Mary_Reeser (March 8, 1884 – July 2, 1951) 

https://en.wikipedia.org/wiki/Spontaneous_human_combustion#Notable_examples

https://www.youtube.com/watch?v=4hVrSEWrKDY , https://www.youtube.com/c/BuzzFeedUnsolvedNetwork/videos

https://unsolvedmysteries.fandom.com/wiki/Irving_Bentley

https://en.wikipedia.org/wiki/John_Irving_Bentley  (15 April 1874 – 5 December 1966)

https://www.youtube.com/watch?v=upVfmPOBjRE

https://en.wikipedia.org/wiki/Spontaneous_human_combustion#Overview

https://www.livescience.com/42080-spontaneous-human-combustion.html