Jul 12, 2014 10:08 PM by Jessica Gutierrez
GREEN VALLEY - Green Valley District deputies responded to an ATV crash Saturday morning in the desert near Mission Road and McGee Road.
The Pima County Sheriff's Department confirmed Terry Duncan, 68, was riding down a steep hill, lost control and hit his head.
A friend, who was riding on a different ATV, attempted to save his life but Duncan was pronounced dead at the scene.
Deputies revealed he was not wearing a helmet. They do not believe alcohol or drugs were a factor.