Mental health might not get the publicity that gun issues get, but it's a problem far more rampant than shootings.
You know, back before Nixon (at least I think it was Nixon) cut the funding of mental health institutions, we didn't have these mass shootings AND you could still buy an AR with a 30 round magazine.
Mental health is a major causing factor of gun violence which is a reason for gun control. We need socialized medicine. If we heal these people, help them cope and stabilize, gun violence (and other violence) will decrease rapidly.
If you don't think this is a bigger issue you should try thinking sometime, but don't hurt yourself