School Shooting Just Outside Of Los Angeles

Authorities are reporting a shooting at Saugus High School just outside of Los Angeles.
One female was fatally shot, two males are in critical condition and another male is in stable condition.  At least six people were shot.
The school has around 2,300 students. Footage shows some students being led from the school onto buses. Others are still inside the school as it is under lock down along with three other nearby schools.
The suspect is in custody and being treated at a local hospital.  WBAL reports that he is being described as a 15-year-old boy.