CHP
Representational image of a California Highway Patrol cruiser in Los Angeles, California, July 17, 2011. Kevork Djansezian/Getty Images

A Riverside County man faces murder charges after he fatally struck a California Highway Patrol officer Saturday.

Michael Callahan, who was allegedly driving under the influence, crashed into motorcycle officer Sgt. Steve Licon and a car that he had pulled over on Interstate 15 in Lake Elsinore. Licon was rushed to a nearby hospital where he succumbed to his injuries. The family of four in the pulled over car weren't hurt.

Callahan was taken into custody Saturday for multiple possible charges, including murder and DUI, and was scheduled to appear in court Wednesday.

In a news conference Sunday, Mario Lucio, special services commander of CHP's Inland division said, "We have uncovered evidence which shows gross negligence both during and before this tragic collision,” ABC 7 reported.

Though he declined to talk about the evidence, he said the prosecutors will decide the charges to be filed.

Licon was a 27-year veteran with CHP and was survived by his wife, daughter and a stepdaughter. Law enforcement officials along with Licon’s colleagues and family took part in a slow procession in which the officer’s body was taken to the coroner's office.

“Our hearts are heavy after the immeasurable loss of a friend, father, husband, and hero. Sergeant Steve Licon of the CHP Riverside Area made the ultimate sacrifice today while serving his community. Rest easy brother, we have the watch from here,” CHP said in a statement on Facebook.

LAPD Chief Michel Moore took to Twitter to offer condolences.

“Just as we ride to honor officers that have made the ultimate sacrifice, we mourn the loss of another. Sgt Steve Licon of the CHP Riverside Area gave his life protecting & serving his community today. The thoughts & prayers of the LAPD are w/ his family & fellow officers tonight,” he wrote.

In a statement Saturday, Gov. Gavin Newsom said, “Today we mourn the loss of a husband and father of two who lost his life while protecting the State of California.”

An acquaintance of the officer said, "He had a great sense of humor. You could hear him laughing from the sergeant's office. You could hear him coming down the hallway ... Just an all-around great human being." "This is a tough one. It hits you to the core,” he added.