Zero evidence? I’m going to have to call you out on this. An opinion isn’t fact. How about 1 in 3 mass shooters were prohibited from owning a firearm? I can keep on quoting but you clearly don’t know how to use Google. Try this one site and yes, there are many more from which you can quote empirical evidence.

https://everytownresearch.org/maps/mass-shootings-in-america/