Darian Xavier Thomas, 20, of the 3500 block of Shadybrook Drive, has been held on charges of cruelty of children in the first degree since Aug. 19.
Keontrez Demitrius Sherman was admitted to Medical College of Georgia Hospital on Aug. 18 after Thomas called 911 reporting the boy was unresponsive.
The child was on life support until 4 p.m. Wednesday when he passed away.
Medical experts said Keontrez’s injuries were consistent with abuse and Shaken Baby Syndrome, according to Peebles. Thomas reportedly told deputies the boy had run in to a wall several days before.