He is a student at Parkrose High School, where he brought the shotgun Friday, authorities said. Witnesses told The Oregonian/OregonLive that he appeared distraught when he appeared at the door to their government class and pulled the weapon from beneath a long black trench coat, and that a football and track coach who also works security at the school, Keanon Lowe, tackled him before anyone got hurt. Lowe is a former football standout at the University of Oregon.