Verb form of "spontaneous human combustion"
Human is not necessary here as you've already established it with he. So, you could say "he combusted spontaneously," or "he spontaneously combusted."
I would use autoimmolation.
Human is not necessary here as you've already established it with he. So, you could say "he combusted spontaneously," or "he spontaneously combusted."
I would use autoimmolation.