The Kansas City, Missouri, woman accused of murdering her six-year-old son in 2022 pleaded not guilty due to mental disease or defect last week.

Tasha Haefs was charged with first-degree murder and armed criminal action in the death of Karvel Stevens.

Police described a gruesome scene when they were called late Feb. 15, 2022, to a home in the 7300 block of Indiana.

Court documents indicated Haefs called police and told dispatchers the devil was trying to attack her before hanging up.

When officers arrived, they found blood outside the house and could hear Haefs singing inside, singing louder as officers knocked.

Officers entered after Haefs refused to answer. Karvel and a dog were found deceased inside the home.

A mental health evaluation was ordered for Haefs in the days following K

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