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Mother arrested for DUI after head-on crash kills 5-year-old girl in northern Arizona

The girl died in February after she was taken off of life support. It was four days after her mother crashed head-on into another truck in Rimrock.
Credit: Yavapai County Sheriff's Office

YAVAPAI COUNTY, Ariz. — A woman was arrested for a deadly head-on crash earlier this year that left her 5-year-old girl dead, and police say she was under the influence.

One of the adults injured in the crash, 47-year-old Jill Knox, drove her 2012 Chevrolet Suburban the wrong way on Cornville Road near Kimberly Way in Rimrock in February

The woman crashed into a 37-year-old man driving a 2007 Ford F-150, according to the Yavapai County Sheriff's Office.

Knox also had her 5-year-old daughter in a normal seat instead of a child seat, resulting in serious injuries, according to YCSO.

Fire crews had to use hydraulic tools to remove them from both vehicles.

The child was flown to Phoenix Children’s Hospital with apparent internal bleeding. 

Both drivers were flown to Flagstaff Medical Center in serious condition with multiple injuries.

The 5-year-old later died she was taken off of life support. 

Credit: Yavapai County Sheriff's Office

Witnesses told authorities that the Suburban was weaving on Cornville Road at Page Springs Road and crossed over the centerline several times.

The woman who drove the Suburban said she thought she had fallen asleep and admitted to using pain pills and medical marijuana earlier.

Deputies found evidence of drug use in her purse along with medical marijuana prescriptions. Blood test results are pending.

The investigation is ongoing. No further information was immediately released. 

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