It is a sickening image that has become all too familiar to Americans around the country.
Students walking single file, arms raised, after a gunman opens fire inside their school.
This time, it happened at a high school just outside Portland, Oregon.
One student was shot and killed, and a teacher was injured. Multiple law enforcement officials tell CNN the gunman is dead from a self-inflicted wound.
Reynolds High School student Hannah League shares what she experienced during the shooting.
Pamela Brown has the latest details.