Yeah because it would have made a huge difference if he used a .22 or a .380 or a .45.. I read in one article he shot the guy in the chest, then shot him in the head after he fell. Pretty sure it didn't matter what gun he used at that point.
Of course the talk of limiting .45 is ridiculous, especially when compared to your statements of how the current laws obviously failed.
They have to take SOMETHING from this situation though since they didn't get their mass shooting they wanted.