Lots of young, bright and intelligent people die every day for all sorts of reasons. Lots of bright and intelligent people smoke death dealing tobacco, it's not just heroin and alcohol to excess that kills. Drug use, and emotional shape, has little to do with how intelligent someone is. In fact I wonder what is meant by intelligent. It almost infers that the person had more right to life than another not quite so disposed. Elitist almost, although I'm sure it is not meant in that way. The young and death don't easily mix in our psyche. Makes an awful mockery of things.
This is one of the media/entertainment/gliterati's own, so they're bound to go big on it. It's their family, they are part of the establishment.
Sounds like heart failure, due to what, who knows. Very, very sad for someone who has carried the mark and fallen so early. I've known so many lovely people, and not so nice, that died far too young. Some drugs, some cancers, some accidents, some suicides, some almost fated.
I suppose hereditary celebrity is no different than the hereditary Builder and Son. It's almost a trade these days, and the young are blooded early... it certainly pays well.