I was struck by the fact that one of the finalists for Best Novel had a title - Gone - that has been used by at least two other mysteries before (which came out within weeks of each other) (and of course is the name of a book by Lisa McMann and book and a series for a YA paranormal/dystopian/sci fi mash-up by Michael Grant).
And then I saw this true crime book with a title that looked awfully familiar:
But of course this was there first
See all the finalists here.
It would be a dream-come-true for me to have an Edgar nom.