Kristine Kirk, 44, was shot to death in her Denver home on the evening of April 14, 2014, while on a 911 call. During the roughly 12-minute call she told the dispatcher her husband, Richard Kirk, was hallucinating, talking about the end of the world, frightening their three young children, and may have consumed a marijuana-infused edible. A scream was heard on the line and a gunshot followed. Officers who arrived at the South St. Paul Street residence found Kristine with a fatal gunshot wound to the head; Richard Kirk was arrested at the scene and reportedly admitted to killing her while in the back of a patrol car.

Richard Kirk initially pleaded not guilty by reason of insanity, with his defense pointing to the edible he had taken. He was later found competent to stand trial and in February 2017 accepted a plea to second-degree murder. At his April 2017 sentencing, he was given 30 years in prison and relinquished his parental rights to the three children; he told the court that had he not ingested the edible his wife would still be alive.

Did anyone in the neighborhood notice unusual behavior from the couple in the days before April 14, 2014?