Annie Elizabeth Liddell, 70, was found dead in her Marble Falls, Arkansas home on September 19, 2017, after a third party contacted law enforcement prompting a welfare check. Deputies entered the residence and discovered she had suffered a fatal gunshot wound to the back of her head.

Her husband, 69-year-old Andrew Liddell, was at the scene and was arrested and charged with her murder. In March 2018 he was evaluated by two state-appointed psychologists and was found unfit to stand trial; a court ordered his commitment to the Arkansas State Hospital for 180 days with a requirement for outpatient treatment upon release, with possible return to jail for noncompliance.

What additional information about the case or people involved might help explain what happened that day?