a human heart was found on the rock salt pile at the Tennessee Department of Transportation salt barn in Dec 2022, they never discovered who was killed. Just that it was from an adult male of course

https://www.nbcnews.com/video/human-heart-found-in-tennessee-salt-stockpile-158167621791

https://www.wsmv.com/2023/08/23/no-update-9-months-after-human-heart-found-salt-barn/