According to NBC-DFW, 59-year-old Sandra Dunson was under the influence of drugs and alcohol when she made an unsafe lane change in front of a semitrailer that then crossed the center line and struck a small bus carrying high school cheerleaders. The collision resulted in the death of cheer sponsor Elizabeth Pope.
A DPS spokesperson also revealed that Dunson died last month while the crash was still under investigation.
In addition to Dunson, authorities cite the semitrailer’s failure to control speed as a contributing factor in the crash.
The following information was provided by the Texas Department of Transportation (TxDOT):