When Did Robert Kya-Hill Die?

Robert Kya-Hill was an American actor, director, playwright, musician, composer and educator. He also performed under the name "Bob Hill". On learning that there was an actor with the same name, he briefly changed his name to Robert Hill II. He then added the prefix "Kya" after joining the Screen Actors Guild in 1961 because a union rule barred members from having the same name.