I have struggled for a long time to know how to address, coherently that is, the craziness that has sent insane people into the streets to kill innocent folks, folks they thought God wanted them to kill.
Sara, writing at Orcinus this morning, says it far better than anyone I have heard yet. You can read her words here.
I read her and her partner Dave quite often and find them to be well-informed, thoughtful, and perceptive. Also bitingly cogent and with a minimum of snark.