Interesting comments. "Gun control", as we often call it, is such a double-edged sword. Any reasonable person would think, "I wish I had been there with a .45 handgun. I could have stopped that guy." It's not a thought that you just throw around like it's nothing to use deadly force. But that's what I'm thinking, along with the thoughts and prayers for the victims and families. It's impossible for me to fathom doing what was done to innocent human beings, particularly children. The blood absolutely boils at the thought.
But an earlier comment seems correct to me, that only the law abiding citizen will have trouble arming himself or herself. The crook or deranged psychopath would get it through the black market, not being able to legally obtain a weapon. I also don't want to walk into the local diner with my family and have half of the customers carrying a sidearm. That's what I mean by "double-edged sword". A dispute about a check or between two customers can go from words to really bad if firearms are involved because there are right on your hip, in a crowded establishment.
Point being that we try to strike a balance with allowing the legal ownership and proper use of firearms, while trying to keep them out of the hands of people like the aforementioned mass murderer. I would have to say thought, that this person might have been deterred from this crime if as I mentioned earlier, half of the customers in the theater were carrying firearms. Not much of an answer, which is what we want right now.
Again, thoughts and prayers to the victims and their families.