Phoenix student arrested for bringing AR-15 to high school

A student was arrested after bringing an AR-15 and ammunition to a Phoenix high school. The student is facing "serious felony charges" and is in custody. The police department's crime gun intelligence unit is investigating alongside school and district officials. Arizona does not ban semi-automatic rifles, but prohibits minors from buying or possessing a gun without written consent from a parent or guardian. The incident comes just days after an 18-year-old shooter in New Mexico used three weapons — including an AR-15 — to fatally shoot three elderly women.