The 33-year-old officer had been with the CHP for a little over a year. Camilleri is survived by his wife, Rosanna, a daughter and two sons.
Officials said Camilleri's partner Jonathan Velasquez, was sitting in the driver's seat of their patrol vehicle at the time of the crash. He suffered injuries, but was treated and released from the hospital.
The CHP said the two officers were parked on the right shoulder of southbound I-880, just past the Whipple exit, looking for drunk drivers.
A driver in a red Cadillac drifted off the road and slammed into their SUV at 11:30 p.m. Sunday, authorities said.
It appeared the driver of the Cadillac was not only drunk, but under the influence of drugs and was coming home from a party, according to the CHP.
Authorities did not release the suspect's identity, but said he is a 22-year-old from Hayward.
The suspect is currently in the hospital being treated for his injuries.
The California Highway Patrol credit union has set up a fund to help the officer's family.
In an effort to help well wishers steer clear of fraudulent donation sites and the grieving family avoid excessive administrative fees, the CAHP Credit Union will be setting up a benevolence fund for Officer Camilleri’s family. https://t.co/9hixZzoIvX pic.twitter.com/w4dAlsjn1a— CHP Golden Gate (@CHP_GoldenGate) December 25, 2017
Gov. Jerry Brown issued a statement following news of the officer's death.
In honor of Camilleri, Capitol flags will be flown at half-staff.