Apparently the doctor that testified was a quack.
Also in the article, but not related to the case:
Quack doctor article wrote:
In another case, a women spent three years in custody charged with the murder of her seven-year-old daughter after Smith reported the girl had been stabbed 80 times with scissors. The wounds were eventually found to be dog bites.
Ok, so she didn't stab her kid 80 times with scissors, she just let her dog knaw on her for a while. People make me sick.