No not Mike Castle. Mississippi is about to pass their own version of the "Castle Doctrine." The castle doctrine is based around the logic that an individuals home is their castle. It removes any requirement to retreat in the face of threat when you are in your own home. Instead you may react with proportionate and even deadly force.
Kim du Toit notes that puts us at odds with most of the western world, where defending yourself against killer with lethal force is illegal. So it's good on both counts.