People who have lost God commit such atrocities. Some when they do such hateful things may believe they do so in Gods name, but they are deceived. They do the work of the greatest of deceivers, we know as the father of lies. Mankind's nemesis from eternity who's mission is to turn people from God and steal their souls for his own, so deceived is he, he believes he can be as god if he binds so many souls to him in darkness. We know him as Satan, you know him as Shaytan.
God is light, and light will always prevail over darkness. Darkness is the absence of light as evil is the absence of God.