• Nancy Guthrie's family has been cleared as suspects in her kidnapping case.
• Investigation reveals evidence from the scene, including blood and a glove matched to a suspect.
• Law enforcement continues to search for leads involving possible ransom notes and Walmart purchases.
• FBI and local authorities are conducting extensive searches with advanced tracking methods.
• Family members, including Savannah Guthrie, are appealing for public help in the case.

Nancy Guthrie's family has been officially cleared as potential suspects in her abduction, according to Pima County Sheriff Chris Nanos. As the investigation enters its third week, the sheriff emphasized that "the family has been nothing but cooperative and gracious and are victims in this case," refuting any speculation to the contrary as "not only wrong, it is cruel," according to Reuters, SCMP, and BBC.

The investigation has revealed crucial evidence, including DNA from a glove found near Nancy Guthrie's home that appears to match the attire of a masked suspect seen in doorbell footage prior to her abduction. The 84-year-old mother of "Today" show co-anchor Savannah Guthrie was last seen on January 31, with her disappearance reported to authorities the following day. Sheriff Nanos indicated that "kindness matters," urging the public to refrain from speculation, according to Reuters and SCMP.

Shifting focus toward the investigation, authorities have received at least two ransom notes, yet there has been no direct communication with the Guthrie family or authorities. Law enforcement and the FBI are working closely to review local surveillance footage from Walmart, as preliminary reports suggest the suspect's backpack and mask may have been purchased at the store, according to BBC and SCMP.

Efforts to locate Nancy Guthrie include innovative tracking methods, such as using a helicopter-mounted signal sniffer designed to detect signals from her pacemaker, which she relies on for health reasons. The family is actively appealing for information regarding her whereabouts through public appeals, with Savannah Guthrie urging the public for assistance in locating her mother, according to Reuters, SCMP, and BBC.