Ключевые слова: aggression, aim, armed, background, black, child, children, concept, criminal, danger, dark, education, firearm, flat, free, gun, kid, kill, law, lay, learn, lesson, letters, life, murder, object, pistol, prevention, problem, protection, protests, punishment, pupil, risk, safety, school, security, shooting, social, stop, study, terrorism, text, threatening, top, underage, victims, view, violence, weapon,