The murderer was a atheist commie felon (i.e. Democrat) who broke the law by owning a fiream at all.
There are no gun laws that could have prevented his actions; even complete confiscation would likely fail, based on the experiences in the UK, and Australia.
So why does the Left keep calling for gun control?
Because they have plans for us that they can’t implement while we are still armed. For instance, would you like the be a Congresscritter that voted to confiscate 401Ks and IRAs while there were still armed citizens?