When we were there about 20 years ago, there was a book for sale in the gift shop titled “Death At the Grand Canyon.” There was a story in the book about a guy who jumped about 10 feet onto a rock whose surface was covered with coins thrown by tourists. He was dancing around and singing when he slipped and fell hundreds of feet to his death in front of horrified onlookers.
I posted a link to that before I saw your post. Looks like it is still on sale.
I looked at a copy at a Half Price Books once, but did not buy it.