Well, this is very sad!  Caroll Spinney, who has performed both Big Bird and Oscar the Grouch on Sesame Street for nearly 50 years, died after living with Dystonia for some time.  He will be sorely missed, and may he rest in peace.  And so, I send out my sincere thoughts and condolences, and they go out to his family, to his friends, to his fans, and to the cast and crew of Sesame Street and Sesame Workshop.  It's a big loss.