Ключевые слова: aggression, ammo, arm, armed, assassin, attack, attacker, background, barrel, black, books, bullet, carrying, classroom, control, crime, criminal, danger, dangerous, dark, felony, firearm, gun, gunman, hand gun, handgun, killer, killing, magazine, man, metal, military, murder, notebooks, people, person, pistol, protection, safety, school shooting, security, shoot, shooter, shooting, shooting sports, shot, steel, trigger, violence, weapon,