ABCNews -- Hannah Overton, 32, a devout Christian and mother of five kids, is serving a life sentence in a Texas prison for killing her 4-year-old adopted son, Andrew Burd. Her husband, pastor and scores of fellow parishioners have argued her innocence for years despite her conviction. Now, after nearly two years behind bars, her appeal to the 13th District Court of Appeals has been denied. In its decision, the court concluded that "a rational jury could have found beyond a reasonable doubt that Overton intentionally caused A.B.'s [Andrew Burd's] death by either of the theories alleged by the state, and that Overton was aware that her conduct of failing to provide or seek medical care was reasonably certain to cause A.B.'s death. Therefore, we...