KILLED and eaten??
Porcupine, back when I was in college. We shot one, one brave guy skinned it, and we roasted it over coals. Frankly, it was delicious.
What's so exotic about deer heart? It's just muscle tissue, same as a roast or steak. The liver is good too. I eat both, but don't consider it anything to brag about. They're just part of the deer edibles.
(Fry up some bacon. Put it aside. Fry up some onions in the bacon grease. Put the onions aside. Now slice the liver thin and fry it ONLY until it's not pink inside, not one second longer. [Most people make the mistake of frying it to death, then complain when it turns rubbery. Serves 'em right.] MMMmmm, liver and bacon and onions...I'm salivating just typing about 'em!)
My wife is part Norwegeian, so every so often we go to a lutefisk supper. Again, what's so exotic? In areas with a strong Norwegeian heritage, this is considered normal. BTW, I happen to like lutefisk. Never killed any, though.