12 Aug 2014 - 5:09 PM  UPDATED 12 Aug 2014 - 5:09 PM

Robin Williams' friend and collaborator Billy Crystal said simply:



Conan O'Brien saluted Robin Williams on air during his talk show on Monday night. O'Brien learned of Williams' death during the taping of his program and told his audience, "This is shocking and horrifying and so upsetting at every level".