Overview

• The juvenile pleaded not guilty to five counts in Pierce County juvenile court and remains in secure detention.
• Deputies say a search recovered 23 firearms and several boxes of ammunition, with rifles mounted on walls and unsecured handguns throughout the home.
• Evidence included loaded magazines with “school shooter” writings, clothing and writings consistent with a mass‑shooting scenario, and signs of fixation on past school attackers.
• Tips from an internet watch group and community reports about social media posts boasting access to guns spurred the overnight arrest and ongoing review of the teen’s devices.
• Authorities reported many guns lacked serial numbers and some appeared 3D‑printed, and prosecutors have not decided whether to pursue improper‑storage charges against the parents.