12-year-old arrested after allegedly making threats to Oak Ridge Elementary in Chino Hills

CHINO HILLS, Calif. (KABC) -- A 12-year-old was arrested after police say he made a threat to his school, Oak Ridge Elementary.

According to a statement from the Chino Hills Police Department, a "concerned citizen," who wished to remain anonymous, tipped them off Thursday about a video the boy made in which he rapped about getting in fights with other students and shooting a specific staff member at the school.

After investigating, police notified school staff, then went to the boy's home where they discovered the family had guns in a locked safe, the statement said. He was then arrested and booked into juvenile detention.