According to ABCNews 9.com two of the four people in a Ford Explorer, Gregorio Mejia-Martinez, 47, and Ester Delgado, died at the scene on State Route 60. The two other family members - Leticia Ibarra, 42, and Jessica Jasmine Mejia, 20, were declared dead at the hospital.
The two female passengers in the Chevy Camaro also died. According to the authorities, the Camaro was driven by 21-year-old suspect Olivia Culbreath. Her sister, Maya Louise Culbreath, 24, of Rialto and Kristin Melissa Young, 24, of Chino were declared dead at the scene. Reports indicate Olivia was arrested after being pulled from the wreckage of the Camaro. She was being treated for a broken femur and a ruptured bladder, according to officials.
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California Highway Patrol (CHP) Officer Rodrigo Jimenez said the crash scene in Diamond Bar, a suburb east of Los Angeles, was horrific. Three people were ejected from their cars and the Camaro was barely recognizable. Jimenez told the San Gabriel Valley Tribune that evidence collected from the scene included alcohol.
Olivia Culbreath remained in hospital in serious condition. The driver of the Ford Freestyle sustained minor injuries.