it doesnt matter who killed them it matters whether or not they were killed explicitly in the name of god allah in all of the cases you mentioned it was not in the name of god yes they were horrible acts but every race and creed commits horrible acts the question is whether or not it is done because the perpetrators thought it would please god for everything you mentioned the answer is no everything muslims have done in the past years including conquering much of the world violently i might add killing and raping and looting defeated enemies all of which is sanctioned by the koran no less honor killings stonings beheadings hangings murders decapitations and full scale warfare all in the name of god and don't point to the crusades as christian aggression the crusades were the response to centuries of muslim aggression