Yesterday the Saint Charles Parish Sheriff's Office announced that a juvenile had been arrested on the 16th in connection with the death of a 6-month-old infant.
Officers were called to a residence on November 15 for a medical emergency when parents returned to their home to find their son was not breathing.
Live saving measures were used, but unsuccessful.
During the autopsy, medical examiners ruled the child's death as a homicide.
Through an ongoing investigation, officers found reason to request an arrest warrant for the boy's 12-year-old sister.
She has since been arrested and is being held at a juvenile housing facility on a charge of first degree murder under Louisiana Revised Statute 14:30.
According to the New Haven Register, children under the age of 14 cannot generally be tried as adults within the state of Louisiana.
Sheriff Greg Champagne stated, "This is an horrific and tragic situation. The homicide did not involve the use of a dangerous weapon. Due to the sensitivity of both the victim and suspect being juveniles, we are unable to comment any further."
The sheriff's office has declined to identify the victim as it would reveal the identity of his sister. This remains an active and ongoing investigation.