A 38-year-old Lookout Valley man pleaded guilty Monday to vehicular homicide in the 2009 dragging death of his girlfriend.
John Thomas White has a sentencing hearing scheduled for July 25 and faces three to six years.
He had been scheduled for a jury trial on May 31.
The Hamilton County district attorney's office had charged White with second-degree murder, vehicular homicide and leaving the scene of an accident involving death in the incident that killed Marie Oliver, 27.
Assistant District Attorney Lance Pope dropped the other charges.
White has been in jail since his arrest in January 2010.
Under state sentencing guidelines, White could be eligible for parole upon sentencing if he receives the lower range of the prison term.
Witnesses at Critters Bar at 3222 Cummings Highway told police that, about 8:30 p.m. on Jan. 6, 2010, White and Oliver got into an argument and White left the bar.
As White pulled out of the parking lot, Oliver jumped on the back of his moving truck. She held on for more than a mile before losing her grip, then fell and was pinned under the truck.
White continued to drive.