They say her being retarded means she couldn't have "masterminded" this. I love the use of "mastermind" here as if you need to have much intelligence in order to hire a hitman to kill someone.
They called her "retarded" on the basis of an IQ test administered after her arrest.
One has to wonder about the reliability of an IQ test for somebody who is under indictment for murder, and furthermore under a defense lawyer's care.