A 26-year-old woman accused of killing her uncle in St. Maries, Idaho, will undergo a mental evaluation.

 Melisa R. Bates could be heard yelling uncontrollably from her holding cell upstairs from the Benewah County courthouse Wednesday, according to KHQ.

Bates was to be arraigned on a murder charge, but that has been postponed 30 days as she completed a mental health evaluation. Bates will be held at a mental health institution in Lewiston, KHQ reports.

Bates was arrested near Bayview Tuesday after deputies found the burned remains of her uncle, Robert Dean Marek, 43, while checking to see why he didn't show up for work.

A motive for the slaying has not been released.

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