Koko, the Gorilla Who Mourns the Passing of Robin Williams – 8 Pics + Video FacebookMessengerTwitterPinterestRedditWhen the news of Robin's demise reached the Foundation, Patty explained to Koko that “we have lost a dear friend, Robin Williams”. After that, Koko was obviously saddened, and signed words for “women” and “crying”. 4 / 9 Pin Pages: 1 2 3 4 5 6 7 8 9