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Suspect in DUI crash that killed San Bernardino County Sheriff’s Deputy identified

CHINO, Calif. ( — Authorities identified the suspect charged with driving under the influence and killing an off-duty San Bernardino County Sheriff’s Department police officer.

It happened at about 12:31 am, on Sunday, February 17, 2019, at the intersection of Edison and Euclid Avenues in Chino.

Deputy Nicholas O’Loughlin, 28, of Chino Hills, was traveling south on Euclid Avenue in a 2006 Chevy Silverado when he was struck by Yijie Mao, 26, of Alhambra, who was traveling west on Edison Avenue in a 2014 Compact SUV, stated Chino PD officials.

According to the City of Chino Police Department, Mao was determined to be under the influence of alcohol and marijuana. He was arrested for gross vehicular manslaughter while intoxicated and DUI causing injury.

Mao was being held at a San Bernardino detention center with his bail set at $250,000, according to public records.

In a Facebook post, the Sheriff’s Employees Benefit Association (SEBA) said Nicholas made an indelible impact on those around him and was raised in a Law Enforcement family and proudly continued the tradition with the SBC Sheriff’s Department.

“He was hired in July of 2017 and in a short amount of time gained a reputation of trust and esteem from his colleagues. Nicholas was highly regarded by his peers and completed his work with a smile,” stated the Facebook post.

The investigation is ongoing and anyone with information is asked to contact Officer Bloch at (909) 334-3018 or

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