We do not know for sure if certain mental conditions might cause an individual to shoot someone. We do not know that taking care of mental conditions better than we do would "fix" the problem. We do not know whether or not violent movies, games, or physical or mental abuse will directly lead to an individual shooting someone. We can form correlations and speculate. But correlations, even strong correlations do not prove causality. But they bear further investigation, that is for sure. Then, what we do with the results is subject to prejudice, preconceptions, and politics.

What we DO know, is that if there is no gun present, then there can be no gun-related death.

Saul