. >>> william calhoun was arrested last month in a joint operation with sanford police and the atf. the city is partnering with the federal agency to crack down on drug and >>> a 13-year-old armed with an assault rifle and ammunition was on his way to school but a family member stopped him in his tracks. >> officials say the boy was annoyed by some of the classmates. >> terrifying. >> reporter: carlos is grateful that his family and everyone else here are safe. yesterday he was worried when officials say a 13-year-old boy who lived in the county tried to bring an ar-15 that looked a lot like this one and ammo with him to school. >> i heard he was locked up, loaded, ready to go. yeah, it was a good thing they caught him. >> reporter: his dad and other family members discovered the gun and took it away before it was too late. the 13-year-old was taken to a mental met to be evaluated. school to deal with it. those students and their parents were made aware of the situation and offered counseling. since the gun never made it on campus, no we asked officials if he would be allowed to ret