Ting Kang, 30, was one of three women arrested.
Two students got into an argument, which led to the stabbing, authorities said.
Neither the deputy or the motorist suffered major injuries.
There were not immediate reports of damage.
A civilian also was injured and the deputies airlifted to County-USC Medical Center.
More than 350 plant were found but no arrests have been made.
The crash, which happened at 10 a.m., has caused a backup on the 57 Freeway as well.
The big rig ended up off the freeway shoulder following the crash, which was reported shortly after 10 a.m. at Grand Avenue.
Gerardo Cortez, a 26-year-old Monrovia man, is also suspected of making similar threats to schools in Monrovia, Arcadia, and Duarte last week.
Roger Kenny Reyna, 30, died at the scene of the crash in the City of Industry Friday night.
The campaign is aimed to raise awareness of thefts and encourage students and employees not to leave personal belongings exposed in their parked cars.
The victim was standing behind his pickup truck when he was struck by an 18-year-old driver from Diamond Bar.
The blotter lists crimes reported from Sept. 2-9.
George Debierre-Abrao, 23, died at the scene of the crash at Kellogg Road.
A phone call from an unknown man threatening to shoot people with an AK-47 prompted the lockdown and search of two medical facilities.
The unnamed man died at the scene of the crash, which took place near the Kellogg Road exit.
Knabe established the countywide Safe Surrender Program in 2001.
The man was at a grade crossing west of the downtown Pomona station when he was hit.
There was an increase this year in the number of arrests made during an 18-day anti-DUI campaign by the Avoid the 100 task-force.
Clifton Huang, 43, faces up to 50 years to life in state prison if convicted.
The single-vehicle crash was at Valley Boulevard and Fairway Drive.
The victim has been identified as Vilma Chau, 66.
Kurt Ferguson, a 28-year-old Walnut man, died after his motorcycle hit that rear of the car Ho was driving.
The Los Angeles County Sheriff's Department is participating in the national Summer/Labor Day Avoid the 100 DUI deployments.
The listing of reported crimes in Diamond Bar and Walnut is provided by crimemapping.com.
Walnut resident Kurt Ferguson, 28, died after reportedly crashing his bike into the rear of a car.
Steven Andrews, 42, is accused of committing lewd acts against a 14-year-old student.
Tomas Rodriguez Infante, 61, is charged in the Jan. 11 slaying of Charito Tolentino, 57, who died from blunt force trauma and stabbing-type injuries.
Socorro Mora is charged in the 2011 fatal stabbing of her estranged husband George Mora.
One crash involved a big rig, which burst into flames, and several vehicles.
Albert Camacho, an Ontario resident, has been arrested for allegedly stabbing Benjamin Cervantes, of Rowland Heights, to death.
The 32-year-old victim was identified as Benjamin Cervantes, city of residence unknown.
The listing of reported crimes in Diamond Bar, Walnut, and City of Industry is provided by crimemapping.com.
Ashley Lopez, 22, received a 360-day sentence and five years probation for the fatal hit-and-run in Irwindale in November.
Los Angeles County has just leased an Erickson Air-Crane two super scoopers from the Canadian province of Quebec. This season is being described as one of the worst in a century.
Authorities chased the driver from the City of Industry to West Covina before making an arrest.