"Victim" does not necessarily imply "foul play."
A person can be a victim of his own recklessness, foolishness, etc. One can even be the victim of, e.g., a heart attack.
Regards,
He is/was reportedly an experienced hiker.
If he didn’t have a personal locator beacon with him...
I’m thinking he didn’t want to be found.
If he did, I’d wonder about a sudden medical co-incidence or foul play.