Two wealthy successful famous people commit suicide within a couple of days of each other. ...it's a reminder that nobody is immune from mental health issues and that even people who seem from the outside to have everything you could ask for still have their own demons to face.
It seems like a lot of artists and performers (and I suppose Bourdain was both of those things to some degree) have struggled with mental illness of some sort, often manic-depressive disorder. I have often wondered if there is a connection between manic-depression and creativity... perhaps the rollercoaster of emotions simply demands expression in some way, and for some that's harnessed in art.
-k