Truly tragic. The poor man, I believe, accomplished all that he could. And he thought it would be undignified to continue living. Is my explanation. These sort of artists do not waste any time simply lying around. Radical and extreme, yes. But also disturbingly and shockingly honest, to his life. It is not like he had any desire to start a family.
There is no way these kind of people can be stopped or convinced otherwise. There is only so much an artist of his caliber can do with music, specially with the sensibilities which he had. Only so much he can push musically, the rest is living at peace with oneself and content with all that he has accomplished. Obviously this is the farthest from the truth of the matter. May he rest in peace.