AUGUSTA, Ga. —  Two teens could face murder charges after one of them threw a metal tent pole at their father's head, fatally injuring him.

Richmond County Coroner Grover Tuten says 39-year-old Tony Powell Sr. of Augusta died Monday at the Medical College of Georgia Hospital. Powell had been undergoing treatment there since the Oct. 23 incident.

Sheriff's Investigator Tom Johnson says the 15- and 16-year-old sons got into a confrontation with Powell over his drinking and drug use. When the father attempted to drive away, Johnson says, the older son threw the pole through the open window of his father's vehicle, hitting him in the head.

The son was originally charged as a juvenile with aggravated assault, but Johnson said Tuesday that both teens may be charged with murder.