I remember reading he was bipolar and it's always in these instances that people still deny there are any conditions that cause such intensity in emotions and then wonder why when things turn tragic, they wonder why nothing was done. Mental health, along with all health, should always be thought of and encouraged to treat them... but I know some illnesses are still taboo.
As I am writing this, I am thinking of a song by Suzanne Vega. In the song she references (I believe) William Hurt's death. I've been trying to think of poems to write, so... this could be kept in mind. It's just still hard to believe this. RIP, Robin Williams!