High school basketball coach dead, 8-year-old daughter missing after Christmas Eve tragedy

All six family members were trapped inside, according to the Sherman Police Department. Robinson did not survive, while four other family members were rescued. The family's 8-year-old daughter has not been found. 

"We are shifting our focus into the county, targeting some possible locations where we have not looked to as yet," the Sherman Police Department said in a statement on Wednesday afternoon, adding, "Our search will continue until dark today, then we will resume searching again before daylight."

"It's a tragedy, it really is," he added. 

The Sherman Police Department asked anyone with noteworthy information about the case to call their non-emergency phone number at 903-892-7290.

"Even if you think your vehicle can make it through some large standing water, please consider going around and taking another route because once you hit that standing water, you've really lost control of your vehicle."