The name of the girl killed along with her father in a crash Friday evening has been released by the Bexar County Medical Examiner's Office.
Sommer Carruth, 13, was the second victim of the crash on Interstate 10 near Boerne Stage Road.
She and her father, 41-year-old Gary Carruth, were killed when his pickup truck crossed the center median and hit an 18-wheeler head-on.
Carruth's other children, ages eight and four, were both flown to University hospital.
Investigators have not determined what caused Carruth to lose control of his vehicle.
Carruth and his children had just left his mother's home in Boerne when the deadly accident occurred.