So, I feel there definitely is a deterrent factor at play here for certain types of crimes.
The issue is that, everyone on both sides is making their entire position and arguments all based on what would happen in an active mass shooter scenario. The discussion shouldn't begin or end with that... Mass shootings are rare...sexual assaults, basic assaults, burglaries, armed robberies, and home invasions are far more common than mass shooter scenarios.
If I were a criminal I would avoid people if I knew they were armed too. Yet, I'm not sure that is a good starting point.
We have had a couple of shooters that didn't get killed in these mass shootings, and they were clearly mentally ill. Now, I think many realize that just because your mentally ill doesn't mean your dangerous! Yet, we also realize there are some that clearly are. There were red flags in the cases of the shooters we have in custody, but legally we couldn't do anything about those red flags. That's a problem, and our country clearly hasn't figured out HOW to balance that.
I was hearing on a couple of networks last night that neighbors were concerned about the couple's house in question today. They have many people coming and going from the house, and they were working on something inside the garage. I would assume now from what I'm hearing it could have been the bombs they found. They also noticed an overabundance of packages being delivered, which could have been the parts to make the bombs. They were being deterred from reporting this, because of the fear of being accused of racially profiling them. Our country now has a tendency to jump to that conclusion today, and we also haven't figured out a good way to balance that either.
I'm also not sure what any law on the books would effect the illegal gun trade that most people realize is there. I know where I live its present, and they are used in many crimes. Some people assume those guns are from home burglaries, and similar circumstances. They have no idea of the flow coming in and out of this country of these illegal guns.
There are so many factors in these circumstances, but sadly the media would rather stir the pot of emotions than dig deep to discuss them. Its brings in more ratings to have those that think everyone needs at least one gun, or the other extreme of no one would have should have any. Simplistic viewpoints like that don't solve anything, and yet they are popular on all networks to use both points of view against each other - or use side as a whipping boy towards the other. Then you have the stupid politicians blaming the other side, when in reality they are the reasons we can't get past any of the roadblocks discussed above. I mean if the other side says it will work we will say it isn't. The media culture and the political culture both show to me that neither are capable of discussing anything.