The death of 4-year-old Carlene Rigby has been ruled a homicide.
The child was found by her father March 22 in their Ivy Brook Way home hanging in her room with a window blind cord wrapped around her neck.
The manner of Rigby's death is asphyxiation by strangulation, said Bibb County Coroner Leon Jones.
No arrests have been made. "The case is still under investigation. This just gives us additional information," said Bibb County Sheriff's Lt. Sean DeFoe.
The child's mother, Jody Rigby, lost a 5-year-old son to a car accident in Coweta County in 2005.
After the death of the boy, Glenn Milton Price, Rigby became a member of the Heart of Georgia Chapter of the Bereaved Parents of the USA. The group's website lists her as a contact person.
Price would have turned 15 on the same day Carlene Rigby was found dead.
13WMAZ's Kristen Swilley spoke to Jody Rigby on Friday afternoon. Rigby said she was unaware that Carlene's death was ruled a homicide.
She declined further comment and hung up the phone.
Investigators have submitted their findings to the District Attorney's Office "to bring a resolution to this case," a sheriff's office news release states.