Considering the same group of people who fights gun control legislation tooth and nail is also very much responsible for the lack of mental health services (and general sorry state of health care) in our country, it sounds to me like you don't really want to solve the gun problem nor the mental health problem you predictably deflect to.
And yes, I'm assuming you are a Republican. If you aren't, try not acting like one and folks won't make that mistake.
R won't support restrictions on gun ownership because they say the problem is mental health, but they won't support spending on mental health either. (Most likely because they seem to oppose anything that would actually help people who suffer.)
Reagan undercuts funding on mental health, resulting in the closure of mental health institutions nationwide: