According to a summary of the trial proceedings, published in the 2/2/10 edition of the Patriot Ledger in Quincy, Massachusetts, Rebecca's parents claim that their daughter died from a fast-moving pneumonia and that they were simply acting on the instructions of the doctor who diagnosed their daughter with bipolar disorder and attention deficit hyperactivity disorder when she was two. Dr. Kayoko Kifuji, a psychiatrist with Tufts Medical Center, prescribed the two drugs that were found in Rebecca's body at the time of her death.
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Prosecutors charge that the Rileys deliberately overdosed her with prescription drugs, in part because they had failed to secure Social Security disability payments for her.
The trial of Carolyn Riley, of Hull, MA, was held in Plymouth County Superior Court.
Depakote is an anti-convulsant known as valproate semisodium or divalproex sodium, which is used to treat epilepsy and manic episodes of bipolar disorder. The US Food and Drug Administration (FDA) classified Depakote into pregnancy category D due to its likelihood of causing serious and potentially life-threatening birth defects. To that end, women who are pregnant, are likely to become pregnant, or are nursing should avoid using Depakote.