Jaden Wood didn’t know about the gun brought to school on the fourth day of his junior year until he got home and the news spread on social media. An assistant principal at Rome High in northwest Georgia had gotten a tip and confronted a ninth-grader, police would later say. But the 15-year-old refused to give up his backpack, prompting a resource officer to wrestle him to the floor. Inside the bag, a staff member found a black 9mm handgun loaded with seven rounds, including one in the chamber.