Incredible how at every mass shooting I see content that consists of a copy paste of what I could read since I understand English, 2009-ish:
as a definitely not Republican (you can see all my posts on cloutavista), I can tell you, because of the producer and Wikipedia, that AR-15 doesn't mean what certain people/media out there say.

And if both parties say false stuff, it means they have a higher commitment in hiding the truth: higher inequalities drive more mental health issues (details: structural model equations on the topic, some research even come from democrat think tanks), that drive mass shootings. Counter example: Switzerland.

Image source: the internet