In Kentucky (and other states with a castle law) it's a very bad idea to enter someone's house uninvited.
They're paid for.
Texas too, in Texas if someone comes into your house uninvited you can shoot them. Its not really the legal system you'd need to worry about, tho IIRC civil suits are always a possibility. Gang members, family and friends would be further up the list, plus the notoriety of being the guy in your neighborhood who shot someone, and the room in your house where they died.
"...if the gentlemen of Virginia shall send us a dozen of their sons, we would take great care in their education, instruct them in all we know, and make men of them." Canasatego 1744
