At approximately 1:58 a.m. on Monday, June 23, 2025, Sergeant Shiou L. Deng of the Los Angeles Police Department was traveling south on the 405 in his marked patrol vehicle when he witnessed a collision. After activating his emergency lights, he exited his patrol vehicle to assist the victims in the crash when he was struck from the rear by oncoming traffic hit by another driver.

Sergeant Deng was transported to UCLA Medical Center, however, despite all life-saving efforts, he did not survive. An unidentified victim from another vehicle was pronounced dead at the scene. A third person involved in the incident was also transported to a local hospital in unknown condition.

Sergeant Shiou Deng served the LAPD with honor, courage, and compassion for more than 26 years. He was a deeply respected leader within the Department who dedicated 17 years to the Mental Evaluation Unit. “He was out there every day caring for the most vulnerable in our society,” said LAPD Chief Jim McDonnell.

Additional details will be provided as available.