I was looking for it, but there was an in depth investigation done a few years back. And everyone of the mass shooters was on or “just got off” antidepressants.
From what I have studied and know from personal experiences, your mind goes haywire if you stop taking them or run out once you have been on them for awhile. And this is especially true in younger males for some reason.
Big pharma has known this for years but has covered it up very well. But like someone said above, read the side effects. This reality is explained as side effects. One of the worst side effects is an altered sense of reality and lack of any human emotions or guilt.
Search it, it is all there...
When looking for causes, we should go there. I'm thinking these drugs merely amplify such predispositions into action. Such may be causitive from your perspective, but I don't think it really gets to the root of the problem. I see the predispositions themselves as conditioned behaviors for very serious historical reasons I won't be discussing here. Yet.