I’m guessing suicide. The pic he sent was his goodby.
wow, i had not thought of that. Very sad for the family whatever way he died.
I know someone who did similar to what you guessed happened, similar age. Mind over took and couldn’t see any other way out, but there are other answers, and always Jesus for when we run out of our own strength, ability etc.
prayers for this family and all involved in helping determine what happened.