The fact the people around him don't seem surprised and they aren't releasing the reason makes me feel he must have had some terrible disease they knew was going to take him.
Don't remember him much but i do remember him. Or I guess like Bachuss was guessing maybe suicide. I have been pretty depressed a few times in my life and its still always hard for me to believe people would kill themselves. Must be a level I don't understand and hopefully never will.