Trying to get more details, but something sure isn't right...a hot tub???
Not that unusual. Plenty of people have drowned in a hot tub. Some because they fell asleep. Some hit their head and were knocked unconscious. Some became unconscious because of drug use.
He had a difficult life with drug addiction. Not sure if it factored into the drowning at all. RIP.
It could be drugs. Decent possibility of that. But he was in his mid-50s, and that's when things like fatal strokes and heart attacks start to happen. His friend Luke Perry (remember that dude?) died of a stroke a few years ago. No drugs there, just bad luck.
it's a shame as he'd gotten himself together. but he also sounded and looked like he'd run through the ringer healthwise. the cliche is "took a toll," as in, did damage.