16-year-old Lynnwood High School student arrested in lockdown after road rage firearm incident, no ongoing threat.

A 16-year-old student was arrested at Lynnwood High School following a road rage incident involving a firearm. The incident, reported around 7:30 a.m., led to a lockdown of the school. Deputies discovered parts of an assault rifle in the student's vehicle, which has been impounded, along with her backpack. Authorities confirmed there is no ongoing threat to students and staff, and the lockdown was later lifted.