Can we remember that the NRA has received millions from Russia, and acted as a conduit to funnel that money to GQP (and a couple of dems!). Investigation of these traitors was blocked by the GQP during Trump's administration:

[about.bgov.com]

[npr.org]

I've become somewhat indifferent to these mass shootings in the U.S. because I know that absolutely nothing will change and the next mass shooting is just a few weeks or days away. There will be the worthless "thoughts and prayers" and outrage and finding someone/something to blame (anything but guns or gun laws). I've basically accepted that mass shooting are simply a part of our culture.