A 9-year old boy was arrested this morning at CMS' Briarwood Academy after he was found carrying a .380 pistol tucked inside his belt. According to CMS officials, the 4th grade boy was caught when another student alerted a teacher about the gun and ammunition. The boy is said to live with his 21-year old cousin and police believe he obtained the weapon from him. DSS took custody of the boy after the incident.