It is very obvious that Islamic religion/ people kill many Christians all over the world. Although the Bible says, do not murder, they still practice it. What would be the reason.?
The Quran says not to take an innocent life. It also says if a Muslim murders one person, it's like he murdered whole of the humanity. Before Jerusalem was taken by Salahudin Ayubi, the Christians had massacred all the muslims(innocent) not a single was left alive.