30-year-old Muscovite lawyer Dmitry Vinogradov stormed his office with two semi-automatic shotguns, killing six and injuring one. A text book misanthrope, Vinogradov declared in a rambling manifesto posted to his VKontakte social network account shortly before the rampage that he hates life and the only way to justify it is "to destroy as many particles of this human compost as possible".