All acts of public violence (violence broadly on the public body[1]) have the same root causes -- the purported politics and manifestos are just window dressing; the ideological last straw.

Sad people without identity or purpose, lacking hope, but bearing a heavy grudge and a simmering rage. If you want to make it stop, you've got to address the root; and at the root are tough issues of social justice, economic development, and civic organism.

[1] school shootings, workplace shootings, baseball shootings, mass stabbings, concert bombings, church shootings, train knifings, etc.

"War is god's way of teaching Americans geography"

Terrorism is god's way of teaching Americans what then?