Staff at Lake Oconee Academy searched the teen's backpack and vehicle after he refused to remove his headphones in class. An 18-year-old student at Lake Oconee Academy was arrested Wednesday after staff and law enforcement discovered a handgun, an unfired bullet and marijuana in his possession on school grounds. Greensboro police investigationWhat we know:Staff members at Lake Oconee Academy directed Abias Smith, 18, to take off his headphones during class, but he refused to follow their instructions. A cigarette lighter fell out of Smith's backpack during the interaction, prompting school staff to search the bag for further contraband. Greene County school securityWhat we don't know:Officials have not disclosed what specific criminal charges Smith faces following his arrest.