Investigators looking into the murder of Nancy Guthrie reportedly dismissed a crucial piece of evidence, with new details emerging about how her back door was found open at the time of her death but was overlooked during the initial inquiry. The revelation raises fresh questions about the thoroughness of the original investigation and has renewed scrutiny of how police handled the case.

Details laid out in the report suggest investigators had a "mind-boggling" rationale for not pursuing the open back door as a lead, a decision now being re-examined in light of the case's developments. The disclosure adds to growing concerns about missed opportunities in the case and comes as it continues to attract renewed public and media attention.