Multi-Vehicle Accident Killed 1, Outside Riverbank
December 14, 2021

Stanislaus County, California (Riverbank, CA) – On Tuesday morning, December 14, 2021, one driver died and another sustained critical injuries in a three-car accident outside of Riverbank. Three minors were also injured.

The incident was reported at 9:43 a.m. and occurred between Highway 108/Patterson Road and Skittone Road. The area is just east of the McHenry Avenue intersection with Ladd Road north of Modesto. The driver who died was alone in her white Ford SUV. She was identified as Kolleen Jackson, 68-year-old, of Riverbank. The badly injured driver, Sumer Cheever, 27-year-old, of Modesto, was with three minors in a green Chevrolet SUV. She sustained critical internal injuries and was brought to the Doctors Medical Center for treatment.

The minors have been identified as Joseph Aldaz, 3-year-old, Vanessa Aldaz, 2-year-old, and a 6-month old Sophia Aldaz, who was brought to the hospital for treatment. The minors were unharmed. It is not yet known about the relationship between the 3 minors and Cheever. Brandon Garcia-Castro of Oakdale was traveling west on Patterson Road in a Honda sedan when he came to a halt to take left onto Skittone. To prevent rear-ending the Honda, Jackson turned left as he approached from behind. Jackson was heading at a fast speed for the stopped car ahead. When she took the left, the right in front of her Ford hit the left rear of the Honda.

The Ford spun clockwise and overturned onto its left side, entering the eastbound lane as a result of the collision. As the Ford was flipping, the front of Cheever’s Chevrolet collided with the right side of the Ford. Garcia-Castro was injured but refused medical attention.

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