Police say a 15-year-old gunman at an Oregon high school had an assault rifle, handgun and several magazines of ammunition during Tuesday's attack.
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Police also said Wednesday that an autopsy determined that suspect Jared Michael Padgett died of a self-inflicted gunshot wound in the attack in Troutdale.
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They say no link has been found between the shooter and the student who was killed. No motive was released.
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Police say the shooting occurred in a gym detached from the main school building, with 14-year-old freshman Emilio Hoffman killed in the boys' locker room.
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The weapons and ammunition was concealed in a guitar case and duffel bag when the shooter arrived at the campus. (AP)
