Unsolved Homicide Investigation
Updated: Wednesday, February 13 2013, 02:45 PM EST
An update on an unsolved death investigation in Rutherford County.
Sheriff Chris Francis says the department is waiting to get autopsy results back in the case of 63-year-old Ed Robinson
It's been six months since investigators say he was hit in the head with a wrench at the Rutherford County Airport, and died three days later at the hospital.
The sheriff is treating the case as a homicide, but no charges have been filed.
Investigators have been waiting for an official cause of death.
Airport Employee Dies