Authorities have arrested a Marietta couple charged with abusing their 2-year-old special needs child.
Police say Kenneth Thompson hit his child multiple times, causing permanent brain damage.
The child is in critical condition.
Thompson faces battery and cruelty to children charges.
The mother, Monica Knouff, is accused of child deprivation and cruelty to children.
Police say the couple did not immediately seek medical attention for the child.