Twitter Threat Prompts Lockdown At High School In Pico RiveraA threat on a Twitter account Thursday prompted a lockdown at El Rancho High School in Pico Rivera, and authorities say a male student was detained for questioning.
Instagram Account Threatens San Dimas Student: 'We Plan To Kill Her'Parents of students at Lone Hill Middle School in San Dimas are concerned after an Instagram account surfaced, made by someone threatening to kill a student.
Mira Costa High School Closed Tuesday Over Alleged School ThreatA high school in Manhattan Beach will be closed Tuesday after a second day of threats against the school, authorities said.
OC School To Be Closed For Third Straight Day Over Email ThreatA private school in Orange County will remain closed for a third day Thursday after the school received an email threatening a shooting on the campus.
School In Aliso Viejo Receives Safety Threat Over EmailSt. Mary of All Angels, a school in Aliso Viejo, who was on the receiving end of an emailed-in threat Monday.
Police: Santa Clarita Teen Made School-Shooting Threats As PrankA 15-year-old boy has been arrested for allegedly making an online threat to shoot students in the Santa Clarita Valley.
Boy, 12, Threatened To Shoot 23 Students, Teacher At San Diego-Area Middle SchoolA 12-year-old boy has been arrested and taken to a hospital for evaluation after allegedly threatening to shoot 23 students at a teacher at a San Diego-area middle school.