They were two hate-filled, bigoted municipal employees interacting in one department. Now 13 innocent people are dead in unspeakable carnage. One man spent his free time writing frightening, NRA-loving, hate-filled screeds on Facebook about the other's religion. The other man quietly stewed and brewed his bigotry, collecting the kind of arsenal that the Facebook poster would have envied. What they didn't realize is that except for their different religions they were in many ways similar men who even had the same job. One man, the Muslim, was a loser who had to travel all the way to Pakistan to get...