Boing boing (kek) states it's a common mistake.
"It's established journalistic practice to have pre-written graphics and obits and whatnot ready to roll for famous people. But having them floating around in production databases and content management systems, one click of a "Publish" button from disaster, is a common mistake."
https://boingboing.net/2019/01/21/fox-friends-apologizes-for-a.html
https://en.wikipedia.org/wiki/List_of_premature_obituaries
Long list of names^