San Diego January 30, 2024 5:39 am High school student arrested after threatening to shoot Rancho Bernardo High School NBC 7’s Nicole Gomez has the latest details on the investigation. US & World Videos 2:15 Sweetwater Union high school students receive CPR training 3:01 IBWC holds public meeting in Coronado on Tijuana Valley sewage crisis 2:21 Breeders' Cup to generate about $150M for San Diego County economy 2:56 Mobile air monitoring vehicle to detect toxic gases near Tijuana River Valley 2:43 Program offers some Mesa College grads guaranteed admission to HBCUs