CORONA (CBSLA)  —  A reserve officer with the Buena Park Police Department was killed early Saturday in a three-vehicle crash, authorities said.

The accident happened in the early hours on the 91 Freeway in Corona at the 15 interchange.

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The Buena Park Police Department took part in a procession Saturday to honor the officer.  The procession started at Riverside Community Hospital — the place where the officer’s body was taken.

CBS2/KCAL9’s Cristy Fajardo reported from Corona where the officer’s body was taken and then from Buena Park where he was mourned.

The officer’s body was placed in a flag-draped casket for transfer to the Coroner’s Office.

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Saturday evening, the officer was identified as 58-year-old Art Brice and officials said he was an 11-year member of the force who had just gotten off duty.

Colleagues remember him as being caring, uplifting and genuine. They said his favorite topic of conversation was his 8-month-old granddaughter.

The CHP set the time of the accident around 5 Saturday morning and it involved a semi-truck and a sedan. The impact of the collision was so powerful that it detached the trailer from the truck.

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The cause of the crash remains under investigation. It was unclear if there were any injuries beyond the fatality.