First of all, Islam forbids murder so get that false ideologies and the foundation assumptions you have about Islam out of your head as well as the misconceptions you have about Islam and Allah's Holy Wise Book. Murder is one of the major sins in Islam..one of the major crimes a human being can commit after the crime of committing partnership with Allah in worship.
Second, Allah is always with the innocent regardless what is their religion and Allah is always with the righteous who do justice. Third, those who hate Allah don't know Allah and probably very far away from Allah. Fourth, people can't control what others spew from their mouths even if they are barking like dogs and lying about Allah. Those crimes they've committed is between them and Allah. Allah will deal with liars, and the like..if they choose to lie about Allah's religion and about Allah Himself. They are already in trouble and will face their accusations one day.
Fifth, I don't think you are interested in the truth of Allah and Allah's religion. Although, only Allah knows what is in your heart and whether you are interested in truth, in Allah's guidance or not. I think you've come here to troll in the most pathetic way as you are attempting to lie about Islam and to criticize Islam and you should know better..any decent human being should know better not to answer to barking dogs and ignores barking dogs and Muslims know. Your pathetic question doesn't define Islam and isn't definition of Islam.