Do you want to finish reading before angrily typing a response? You don't have to read the whole thing if reading is hard/boring for you. Just read that last last bit.
This debate started before the dead guy's history and identity were public knowledge. The outrage that police might want to establish facts with verifiable evidence rather than just take the word of a man who had just killed someone was on display before we knew any details about the burglar...
How do we know that the dead guy was a burglar? Because the guy who killed him told the police that, right? He told them about the other guy, too. (I see the report he has priors and is from a family of criminals, but maybe this was that one time he wasn't doing something wrong, maybe that was...