Twenty-six-year-old Daniel T. Cook entered the plea to one count of second-degree murder during a preliminary hearing Tuesday.
Pawnee County Attorney John Settle played a video that showed Cook striking Mondaine. Mondaine fell to the floor and lost consciousness for several minutes. After being taken to a Larned hospital, Mondaine was returned to the state hospital. But his condition deteriorated and he later died while recovering from brain surgery.
A jury trial has been scheduled for June 2.
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