My theory on this and other recent shootings of this type: it is driven by the over medication of our youth, convincing them something is wrong with them for not wanting to sit still in factory schools. Our medical understanding of the drugs prescribed to kids that affect their brains is far smaller than it should be for how pervasive these drugs have become.

We don't know that yet, but it might be also driven by social media radicalization. I'm also curious of the shooter's motives. Judging from the bullet engravings he might have thought he was shooting an awful person, but still, why waste your own life like this? Their wife and kids who were at the scene and maybe some other individuals will probably become radicalized now. Why? It doesn't make any sense.