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D.A. Confirms Suspect in Deadly Oroville Crash was Under the Influence

District Attorney Mike Ramsey released the blood test results for a man accused of killing a pedestrian in a crash in Oroville.

Posted: Oct. 10, 2018 10:42 PM
Updated: Oct. 18, 2018 10:30 AM

UPDATE 9:56 a.m. Thursday, Oct. 18, 2018 - Mandril appeared in court on Thursday and did not enter a plea. 

Shortly after, District Attorney Mike Ramsey released the results of his blood test which revealed that Mandril was under the influence of a combination of drugs at the time of the crash. 

A high level of methamphetamine in combination with oxycodone was found in his blood a few hours after the crash. 

There was no marijuana found in his system, as previously reported. 

Stay with KHSL Channel 12 and for the latest updates as they become available. 


UPDATE 1:39 p.m. Friday, Oct. 12, 2018 - The District Attorney's Office is pursuing charges against William Mandril for vehicular manslaughter while under the influence of drugs and reckless driving with three counts of great bodily injury. 

He will be arraigned on Friday at 3 p.m. at the Butte County Superior Courthouse. 

If convicted, Mandril could face 7-8 years in state prison. 

He is currently being held at Butte County Jail with bail set at $240,000. 


BUTTE COUNTY, Calif. -  The California Highway Patrol said a deadly crash in Oroville was the result of driving under the influence. 

The CHP says Jessana Carmona pulled over on the north shoulder of Lower Wyandotte Road, just west of Foothill Boulevard at 9:20 p.m. Wednesday. That is when Alyssa Marie Gramps, Wheynema H. Sutfin and Hillary Christine Wilhite stopped to help. 

Officials say William John Mandril of Bangor was eastbound on Lower Wyandotte Road toward the two stopped vehicles. They said, due to Mandril's level of impairment and unsafe turning movement, Mandril failed to negotiate the right-hand curve in the roadway.

Mandril reportedly crossed over the westbound lane and crashed with three of the four pedestrians. 

Sutfin and Gramps were taken to Enloe Hospital with major injuries. Wilhite was taken to Oroville Medical Center, where she was pronounced deceased due to her injuries. 

Officers on scene evaluated Mandril and determined him to be under the influence of a drug. He was placed under arrest for DUI drugs and gross vehicular manslaughter while intoxicated. The crash is under investigation. 

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