“He spent two days with their corpses in his house and never called the police.”
Maybe he had a dog he didn’t want shot.
Couldn’t tell you what his motivations were after he shot the people breaking into his home. Don’t really care. They broke in, he killed them. I’ve got no problem with that.
Maybe there’s some nanny-state law they could charge him with for not calling the police right away?
You seem to be unclear on the distinction between self-defense and murder. Fortunately, our laws can still distinguish the two - for now.