You don't enforce the laws we have now

Or, punish them, at least.

So, this crazy dude with a record that executed those cops... shoulda still been in prison, huh?  Crazy dude with that many beefs on the street again in less than three years to kill cops or anyone.

How do we know he had a record?  In  2011 plead to theft, property damage, possession of a gun by a felon and discharging a gun near a public park in 2011.  The possession charge should have put him away for at

Violent murderers are, statistically, violent felons known to law enforcement and the corrections department long before they actually murder.  So when given a person proven violent but not yet murderous, maybe, just maybe, keep tabs on them in a controlled environment with a custodian for more than a couple years, huh?

Why pass more laws about gun control when you don't even bother with the ones you have now?  You only make the otherwise good-citizen, responsible, law-abiding types get tripped up in the byzantine machinations which, frankly, are just your incrementalism toward a full ban and confiscation of all privately owned firearms.  That's not going to happen here.  SCOTUS sez so, and you bumbled your execution and have lost the support of a majority anyway.