I cannot believe the series of e-mails I'm having right now, between me and someone who on the basis of a claim that "I knew the man" wishes to insert a death date for a composer.
He may well.
Wikipedia is not an instant news service. If it's not backed up, if there is not a citation it should not be there, really.
(Yeah, there's a lot of my stuff that needs work. And will receive it.)
Note: not going to continue fruitless conversation until he actually reads the links I placed on his homepage (standard welcome-to-Wikipedia links.) Then he wouldn't accuse me of dictatorially removing material- which anyone can do... just as anyone can restore it (what I can do and not just anyone can do, is temp. block him for abuse.)