Among other things, they were lead poisoned as children at unusually high levels, due to aging lead paint and leaded gasoline. I'm wondering now at the direction of cause and effect between hatred of one's own homosexual - or sexual in general - leanings and gravitation toward something like radical Islam. Is it plausible that religious indoctrination alone could create that kind of root level reaction from scratch? There's at least one woman, who had to run a checkpoint guarded by Mateen in his employment days, who described him as a threatening, predator-like, stalker personality - apparently it got to where her husband came along with her and confronted Mateen about the treatment of his wife, and got him to back off a little. Meanwhile, the direction in which psychos vent their rage when they snap is not random, but predictable in a given society.