From the article:
The 11-year-old boy is a student at Belleview Elementary School on Belleview Road, according to a Rock Hill police report. Another student reported to school officials the boy had brought an Airsoft gun to school.
School officials found the gun and learned that the boy had been bullied by another student, the report states. Several students said they had heard the student talk about the bullying going on and that the student brought the gun to stop the bullying. However, he never showed the gun to the alleged bully or threatened any students with it.
Every gun in the hands of a child must first pass through the hands of an adult.