MESA, AZ - The 16-year-old Mesa girl who allegedly planned to bomb and shoot up a school is due in juvenile court at 1:30 Friday afternoon.
The teen posted her plan on the online video site, YouTube .
A Canadian blogger tipped off police in Toronto who called local law enforcement.
The Maricopa County Sheriff's Office said the girl was taken into custody at her home in Mesa on Wednesday night.
MCSO also said the juvenile admitted to her plot to bomb Red Mountain High School, gun down students then take her own life.
Court officials said the teen was arrested for DV assault, a class one misdemeanor, and computer tampering, a class five felony.
Red Mountain High School added extra security on campus Friday to help ease fears from staff, students and parents.
Check back with abc15.com on this developing story.