A 13-year-old boy, identified by police authorities as Carson Parr, was killed after sustaining mortal injuries in a motor vehicle accident on August 1 in Grand Prairie, The Dallas Morning News reported.

Police investigators said Parr was thrown out of the back window of a 1999 Honda Civic that was heading south on New York Avenue. The vehicle he rode in, which was driven by Parson’s 17-year-old sister, Allie Parr, did not stop at a red light on State Highway 360, and it was struck by an armored car.

The younger Carson was airlifted to the Cook Children’s Hospital in Fort Worth. He died at 1:20 p.m. the day after the accident. The siblings’ 39-year-old mother, Teddi Parr, was also in the vehicle when the accident occurred; she was transported to John Peter Smith Hospital in Fort Worth the same day for treatment of her non-life-threatening injuries. The two armored car passengers were not injured. Investigation continues to discern the details surrounding the crash.