Our holy scripture contains a verse that says: "if you kill one person then that is equivalent of killing whole humanity" and "if you saved one person then that is equivalent of saving whole humanity". There is no other holy scripture that I know of that contains these two verses or similar. Our Quran is not the problem, the Quran is a perfect book and I really say this with great confidence. The problem here is like a soccer game; a player can slide to tackle the ball in the foot of his opponent ONLY when necessary and when there's danger of getting defeated by a goal. Now if this player keeps tackling and sliding other players the whole match then it's his fault that he's an idiot, but that doesn't make soccer a bad game. It's the same with terrorists (player) and our book (the game).