What new leads in Nancy Guthrie's disappearance?

Investigation moves forward but key questions remain

Authorities continue to pursue multiple avenues in the search for the 84‑year‑old who vanished from her Tucson home. Investigators have publicly confirmed there are no identified suspects yet, and they have cleared the family as potential perpetrators after reviewing alibis and relevant evidence.

Recent developments

• A glove found roughly two miles from the residence produced a DNA profile that did not match national criminal databases, prompting federal agents to pursue advanced genealogy testing to try to identify a source.
• Law enforcement deployed specialized equipment, including a helicopter‑mounted “signal sniffer,” to detect the unique radio signal emitted by the missing woman’s pacemaker and to narrow search areas. That device became a notable part of the search strategy because it offered a way to track a medical device that should be transmitting periodically.
• Investigators also traced a backpack purchase through retail records that may be connected to the case; purchase records and other surveillance footage have been sought and reviewed as part of expanding leads.
• Private resources and public offers have appeared: a Milwaukee attorney announced a six‑figure reward for information that leads to an arrest, and media outlets have reported on demand letters and tips reaching investigators and news organizations.

What still isn’t known

No arrest has been announced, and officials say the investigation is ongoing. While biological and electronic leads have given investigators fresh avenues to explore, none has yet produced a confirmed suspect or location. The case remains active, and authorities continue to ask anyone with relevant information to come forward.