Santa Maria man convicted of murder for Arroyo Grande crash

A San Luis Obispo jury convicted a 35-year-old Santa Maria resident of second-degree murder in a drunk driving case surrounding the death of a 68-year-old man.

In Sept. 2015, William Riley Mobley drove under the influence of alcohol following a night out in Pismo Beach and crashed into the car of Richard Stabile, also from Santa Maria, who was parked on the shoulder of Highway 101 near El Campo Road on the outskirts of Arroyo Grande. The collision killed Stabile and impacted another car that was also parked on the side of the highway.

Following the crash, Mobley fled, driving southbound on Highway 101 and then exiting on Los Berros Road. Officers arrested him shortly afterwards. Mobley’s blood alcohol level was .20, more than twice the legal limit.

At the time of the accident, Mobley already had two DUI convictions stemming from 2009 and 2010 cases. Mobley had acknowledged that under California law he could be charged with murder if he drove under the influence again and a person died as a result of his impaired driving.

During trial, San Luis Obispo County prosecutors played surveillance footage from a Pismo Beach bar that showed Mobley drinking six pints of beer in three hours before driving on the night of the deadly crash.

On Wednesday, the jury convicted Mobley of second-degree murder, as well as charges of gross vehicular manslaughter while intoxicated, DUI causing injury, driving with a blood alcohol level of .08 or higher and leaving the scene of an accident. Mobley also received enhancements for his previous DUI convictions.

The Santa Maria man now faces a prison sentence of 15 years to life. Mobley’s sentencing is scheduled for Feb. 9.

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One Comment about “Santa Maria man convicted of murder for Arroyo Grande crash”

  1. SLOBorn says:

    How is it that this man was found guilty of both 2nd Degree Murder and Manslaughter when he killed only one person? He should be guilty of one or the other, but both? From what I’ve read you can charge a person with both murder and voluntary manslaughter for the death of one person but he or she cannot be found guilty of both. If I’m wrong please correct me. Besides, with a 15 years to life sentence this person won’t be seeing daylight for some time as it’s an indeterminate sentence where he has to go in front of a parole board hearing before being granted parole. The manslaughter conviction holds a determinate sentence where he would do the allotted sentence, or a fraction thereof, and then automatically be paroled.

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