Suspect in road rage shooting of Antioch man arrested

It is suspected Allen may have been involved in separate road rage shooting incidents using the above vehicle. Photos: CHP

Information sought on possible additional shootings

By Officer Ricardo Ortiz, PIO, CHP

SACRAMENTO, Calif.: On August 10, 2023, at around 11:00 PM, California Highway Patrol (CHP) South Sacramento Area officers were dispatched to a shooting with a victim struck by gunfire on State Route 160 (River Road) near the Isleton Bridge. The incident was the suspected result of a road rage incident.

The victim in this case, Quincy Chapple, a 25-year-old resident of Antioch, CA, was treated at the scene and transported to John Muir Hospital in Walnut Creek, CA. Chapple received a non-life-threatening gunshot wound and was released from the hospital.

The Valley Division Investigative Service Unit (ISU) responded and assumed investigative responsibility for the case.

During this investigation, investigators identified Timothy Lee Allen, a 21-year-old (born 6/21/02) West Sacramento, resident, as the suspect. Investigators obtained search warrants for Allen’s residence and his vehicle. The CHP SWAT and Valley Division Warrant Service Team served the warrants. A firearm, along with several hundred rounds of ammunition was recovered. Multiple spent ammunition cartridge cases were in Mr. Allen’s vehicle.

The 5-foot-11, 279 lb. Allen was arrested for several charges, which included attempted murder. Allen was booked into Sacramento County Jail. As of Tuesday, August 29, he was still in custody at the Main Jail and is ineligible for bail. His next court date is scheduled for Sept. 6 at 8:30 AM in Dept. 63 of the Sacramento County Superior Court.

Anyone with additional information is urged to call the CHP Valley Division ISU tip line at 916-731-6580, or email

The CHP’s mission is to provide the highest level of Safety, Service and Security.

Allen D. Payton contributed to this report.

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Road rage shooting suspect’s vehicle CHP

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