"We focused on the case of Jadien Harvey, a two-year-old Clayton County boy who died under mysterious circumstances in July.
Clayton County Police say Jadien was being babysat by his mother's boyfriend Kemra Matthew when he suddenly stopped breathing. Ultimately, paramedics rushed all four children in the home to the hospital.
Initially, it appeared that doctors were facing a medical mystery -- an illness whose onset was sudden, severe and in Jadien's case deadly.
But investigators say they believe Jadien's injuries were the result of "child abuse" not some mystery illness.
In the months since Jadien's death, police have charged Matthew with cruelty to children and aggravated assault. Investigators allege he punched Jadien's brother Ashton in the stomach which caused internal bleeding that nearly killed him.
Police say they are investigating Jadien's death as a homicide but are waiting for the result of the toxicology report before filing charges."