abdullah i think you lost your senses , there is no way you can justify killing a person if you feal they killed many people, but what is the difference between you and those people, both of you are eqally bad and this type of mentality leads to terrorism which is nothing but gain for few neurotic people and loss for humanity and brotherhood, i do not know why you people, are like that, because of persons like you entire world is suspicious about muslims, you are the black sheep of your religion.