re: AP: Islamic state claims responsibility. Shooter converted to Islam months ago

Conspiracy theories are crutches for those who fear that there is less order to the world than they can mentally handle. For example, there's absolutely no evidence for some CIA operation here, but some appear convinced based on absolutely no expertise that it had to be. They can't tolerate the idea that there is no real reason or order behind this. It HAS to be government, the known bogeyman. That's comfortable.