How do gun laws address the failure of the current system? You want to give that flawed system complete control?
There is no failure of the current system. It works just as it is designed. But the unpredictability of humans throws an ever changing variable into this that there is no way can be 100% predicted. Some people go along for decades as Joe Normal with 2.5 kids and a house in the burbs and one day they just have had enough and are done and everyone's gotta pay today.
How far should we go with a mental evaluation for someone to exercise a Constitutional right? Probably THE most important Constitutional right. You already have to be licensed and can't take advantage of that right ANYWHERE within our borders, now you have to meet certain mental standard? Who sets that standard? How about no?