If nothing else happens, we need "gun shows" and sales by private owners to go through the same background checks as stores that sell guns are required to do.
There should be a reasonable limit to the kind of "arms" that can be legally acquired outside of our military and police swat forces.
Ammunition should have embedded markings that can isolate tracked sales to potential buyers. I feel that the better tracking, the less chances people would take.
I'm a very far left liberal. In 1999 I would have been called a liberal. And so it goes...
The second amendment to the US Constitution, is as sacrosanct as the first. But keep in mind that the founders believed that "Life, Liberty, and the pursuit of Happiness" was paramount in their Declaration of Independence.
Keep fighting the good fight. When the fight turns bad, please don't stop.
2. Over time they certainly will will do much to help prevent these things
If they are serious about the methodology and enforcement, over time it would create a perpetrator in each gun crime. That person would be identified by the gun registration. That's some good incentive NOT to sell your (registered) firearms on the black market, or otherwise outside of the official background check system.