Coryell Co. (FOX 44) — Texas DPS Troopers are investigating a deadly crash that took place on Straw Mills Road in Coryell County.

19-year-old George Christopher Hallman of Gatesville died when a 2005 Nissan Altima went off the road around 2:06 a.m.

Troopers say Hallman was driving too fast and the car rolled over into a river, coming to a stop upside down, submerged in water.

Justice of the Peace James Caldwell pronounced him deceased at the scene.

A family member tells FOX 44 News that Hallman was not behind the wheel, but a DPS spokesperson says witnesses claim the teenager was driving at the time of the crash.

Troopers are investigating what caused the car to leave the road.