(KNX 1070) - Authorities are investigating two more threats against La Mesa Junior High School in Santa Clarita.
The threats have prompted tighter security on campus Tuesday.
A male student allegedly made a verbal threat to shoot up the school Monday night.
There have been several threats against the school in the past.
But it was unclear if the boy was the same person who scrawled a threatening message found on the wall of a campus bathroom last week.
