Ключевые слова: armed, assassin, attack, attacker, background, bandit, boy, building, burglar, concept, control, crime, criminal, danger, dangerous, education, favors, felony, firearm, gangster, gun, gunman, hallway, hand, handgun, high, justice, keep, killer, male, man, mass, murderer, person, pistol, public, risk, robber, school, school shooting, security, shooter, shooting, student, threat, threatening, thug, violence, weapon, young,