Sheriff's Office Criticized for Inexperienced Lead Detective in Nancy Guthrie Case

Aaron Cross, who heads the Pima County Deputies Organization, alleged that the Nancy Guthrie case suffered from fundamental errors because the lead detective had no homicide experience when assigned to the investigation. He noted that the officer was promoted to sergeant only three years ago and moved directly from patrol to homicide, a move he described as “almost unheard of” before Nanos took office. According to Cross, the lack of seasoned leadership led to duplicated work, inadequate tracking of witnesses, and an early decision to return the case to the family.

He also pointed out a noticeable absence of public notices or reward flyers, leaving Tucson residents largely unaware of the crime. While acknowledging known tension between local investigators and the FBI, Cross said it was unclear if that animosity affected the case. Sheriff Chris Nanos was not immediately reachable for comment.