Nancy Guthrie sheriff says investigators may have more video evidence as they review ...

Theory Briefing

• Pima County Sheriff has released purported notes tied to the Nancy Guthrie case, adding a documentary layer to the investigation.
• Tens of thousands of videos are under active review, suggesting the case hinges on piecing together a massive surveillance record.
• The sheer volume of evidence raises the question of whether more footage clarifies the truth or creates room for competing interpretations.
• Release of the notes by the sheriff signals the investigation is being conducted, at least partly, in public view.