(CBS NEWS) – A suspect was arrested in the killing of a California police officer, police said Friday. Newman Police Cpl. Ronil Singh was shot and killed during a traffic stop just hours after Christmas.

Gustavo Perez Arriaga was arrested in Bakersfield on Friday as he tried to flee to Mexico, said Stanislaus County Sheriff Adam Christianson, whose agency is leading the investigation. The sheriff told reporters that Perez Arriaga was in the country illegally after crossing the border in Arizona and had two prior arrests for driving while intoxicated.

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