TROUTDALE, Ore. - Police say the gunman in the Tuesday attack at an Oregon high school had an assault rifle, handgun and several magazines of ammunition. They identified him Wednesday as 15-year-old Jared Michael Padgett, and said an autopsy determined he died of a self-inflicted gunshot wound.
A law enforcement official told CBS News the shooter was also a student at the school.
They say no link has been found between the shooter and the student who was killed, 14-year-old Emilio Hoffman.
No motive was released.
Police say the shooting occurred in a gym detached from the main school building, with the fatality occurring in the boys' locker room.
The weapons and ammunition were concealed in a guitar case and duffel bag when the shooter arrived at the campus.
Officers responded to the school shortly after 8 a.m. Tuesday. Authorities said the suspect was found dead in a school bathroom, slumped on a toilet, and that he likely killed himself.
Police spokesman Sgt. Carey Kaer said officers used a robot with a camera to investigate and discovered the suspect was dead.
Following the shooting, President Obama reflected on gun violence in a Tumblr chat Tuesday, saying, "We're the only developed country on earth where this happens, and it happens now once a week. ...I mean, our levels of gun violence are off the charts, there's no advanced developed country on earth that would put up with this."