PERRY, Ga. (Court TV) — A Georgia teacher is facing a potential life sentence as she stands trial on charges she killed her young son. Kianna Davis, 35, has pleaded not guilty to seven charges, including malice murder, felony murder, second-degree murder, cruelty to children and aggravated assault in the death of her son, 2-year-old Carter Ambrose. Kianna Davis sits in court on the first day of her trial. (Court TV) Carter was rushed into his pe…