Officer Christopher Sobieski was killed when his 1999 Ford Crown Victoria police cruiser was rear-ended early Sunday and burst into flames.
Sobieski was parked on the shoulder of U.S. Highway 290, watching for speeders and drunk drivers, when the accident occurred.
Police are waiting for results of a blood-alcohol test on the man who was driving a truck that struck the police car.
Sobieski was a member of the Prairie View police department since October of 2001.
He is survived by a wife and two children.