Karen Steinhauser, a former federal prosecutor now in private practice, said most court-ordered sanity evaluations look at whether the defendant is mentally competent to stand trial; has an impaired mental condition or mental illness; and was insane at the time of the crime.
Steinhauser, who is not involved in the Holmes case, said the prosecution's request for further evaluation might indicate that Holmes was found sane but with an impaired mental condition.
If that is the case, it could be tough for prosecutors to convince a jury to convict him of murder and sentence him to death because of the difficulty in making a distinction between mental illness and insanity. Colorado law defines insanity as the inability to tell right from wrong.
Longtime Denver defense attorney Dan Recht said he is not aware of a Colorado judge ever granting a prosecution request for a second sanity evaluation.
If jurors were to find that Holmes was insane, he would be committed indefinitely to the state hospital. He could one day be released if doctors ever concluded his sanity had been restored, but that is considered unlikely.
Law enforcement officers have testified that Holmes planned the attack for months, stockpiling guns and ammunition. They also say he elaborately booby-trapped his apartment with bombs designed to explode and divert police and fire crews from the theater.
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