Once at the scene, authorities found 76-year-old Connie Smith dead inside the apartment.
Shane reportedly confessed to killing his mother, according to officials.
He allegedly told police that it was part of a prearranged agreement he had with his mother to end her suffering by killing her if she became disabled by illness, The Oklahoman reported.
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Authorities said they are looking into the woman’s health condition leading up to the homicide and the investigation is ongoing.
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