A mother who killed two of her children pleads she is innocent, because of a mental disorder that produces multiple personalities. The prosecution has rested its case against Mary Bass. Medical experts have testified the two 8-year-old brothers died slowly and painfully of child abuse so severe one examiner called one of the deaths torture. The first defense witness testified Bass has received treatment for headaches for years. Defense attorneys contend the headaches arose when another personality called “Sharon” took over. Bass told police she accidentally put Larry and Gary Bass into scalding bath water in October of 1999. She has said she didn’t take them to get medical care out of fear.