18-year-old woman arrested for assaulting high school student in Rancho Cucamonga

An 18-year-old woman was behind bars on Tuesday after she assaulted a student at Alta Loma High School in Ranch Cucamonga. 

According to the Rancho Cucamonga station of San Bernardino County Sheriff's Department, deputies were dispatched to the school, located on Base Line Road, at around 10 a.m. after receiving reports of an assault. 

When they arrived, they learned that a student was assaulted by 18-year-old Monterey Park resident Genesis Delgado prior to the beginning of school at their home in Rancho Cucamonga. 

During their investigation, the victim received a "threatening text message" that stated she "possessed a handgun," police said. 

She arrived at the campus shortly after and was taken into custody without further incident. She had no weapon in her possession at the time of arrest. 

Investigators learned that Delgado had left a backpack at a nearby grocery store, which officers retrieved and located a handgun inside. 

She has been booked for criminal threats, carrying a loaded firearm in public and inflicting corporal injury on a spouse/cohabitant/date. Delgado is being held in lieu of $50,000 bail. 

Anyone with additional information was asked to contact authorities at (909) 477-2800.