The victim, Heaven Woods, was at home on Brookwood Drive where emergency workers tried to revive her.
According the GBI, the medical examiners report shows the child died from a blow to the stomach, and had several other new and old injuries.
Investigators have made two arrests in connection with Woods' death.
33-year-old Amanda Hendrickson of Rome, Georgia, the child’s mother, and 34-year-old Roderick Buckner of Forsyth were both charged with felony Cruelty to Children in the 1st degree. Hendrickson was also charged with giving false statements.
Both are being held in the Monroe County Justice Center.
According to the GBI, Hendrickson and Woods moved to Forsyth in early May from Rome, where Hendrickson had a history with the Department of Family and Child Services. The GBI would not elaborate on that history.
This case has officially been ruled a homicide.
GBI spokesperson, Sherry Lang, tells 41NBC more charges are expected. She says District Attorney Richard Milam will determine what additional charges will be brought as the investigation continues.