Nancy Arzate Dead, Mason Michael Joachim Arrested after DUI Crash on Interstate 15 [Temecula, CA]

Nancy Arzate Dead, Mason Michael Joachim Arrested after DUI Crash on Interstate 15 [Temecula, CA]

Cassandra Spain Killed in Two-Vehicle Crash on Highway 242 [Concord, CA]
Nancy Arzate Dead, Mason Michael Joachim Arrested after DUI Crash on Interstate 15 [Temecula, CA]

33-Year-Old Perris Woman Killed in Hit-and-Run Collision near Temecula Parkway

TEMECULA, CA (September 18, 2024) – Saturday evening, Nancy Arzate was killed and Mason Michael Joachim was arrested after a DUI crash. 

The incident occurred around 10:00 p.m., on the northbound lanes of Interstate 15 just north of Temecula Parkway.

California Highway Patrol officers say a 2011 Toyota Camry came to a stop on the right shoulder after losing control and hitting a roadside object. 

The driver of the Camry then exited her vehicle and was struck by a 2003 Ford Edge traveling at around 70 mph.

Despite life-saving efforts, paramedics pronounced the Camry driver dead at the scene. The Riverside County Sheriff-Coroner’s Bureau later identified the deceased woman as 33-year-old Nancy Arzate of Perris. 

Following the crash, authorities managed to detain the driver of the Ford Edge after fleeing the scene on foot.

Officials transported the hit-and-run driver, 26-year-old Mason Michael Joachim of Carlsbad, to Inland Valley Medical Center for treatment of minor injuries. 

Police booked Joachim into the Riverside County jail for felony DUI, hit-and-run, and several other charges. At this time, Joachim is being held in place of $1 million bail. 

Authorities are asking those who witnessed the fatal DUI to contact CHP Officer J. Cox at 951-466-4300.


In this sorrowful time, the Sweet James team would like to extend our heartfelt condolences to the family of Nancy Arzate.


Losing a loved one in a car accident is a traumatic experience for those left behind. Do not settle for the circumstances that come from someone’s negligence. We can help you find justice for the one you have lost. We have the resources, experience, and staff to successfully fight for you. Call us today at 1-844-363-7713 to know more about how we can help you.


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