Don’t know why, but this saddens me, even though many people saw it coming and even say “she was supposed to die.”She didn’t have the best voice, but she benefited from one of the best producers of her generation and she had a rough, wild style and presence that’s hard won and often impossible to sustain. We’re left wondering: what is it about the age of 27? Hendrix, Morrison, Joplin, Cobain, Winehouse . . .