If this man gunned them down as they came in, it would have been covered by his rights as his life was endangered. It would never go that way on court. That’s when things will change though, when people start killing armed people on their property under their castle/stand your ground laws. If 30 cops in a small enough area suddenly get themselves killed they will use their union to fight for disarming civilians and taking away the 2nd amendment rights/self defense laws, or the judges will stop signing warrants once they start getting sued/disbarred for allowing the cops to enter a dangerous situation they shouldn’t have. Punish the police and the judges, and change might occur. So… never