Nancy Guthrie, an 84-year-old from Tucson who disappeared on January 31 after being last seen at her home, remains missing as authorities pursue leads with a $1 million reward plus $200,000 for information that leads to arrests or conviction.

Investigators consider Guthrie to have been abducted or taken against her will, with ongoing efforts including review of surveillance footage and door-to-door checks.

Guthrie, the mother of NBC News host Savannah Guthrie, drew national attention after missing Sunday services, prompting a broad investigative push and public appeals.

Officials say investigators are closer to identifying a suspect but caution the case is not solved, continuing analysis of DNA, surveillance footage, device data, and vehicle movements near the scene.

Public outcry and media coverage have raised concerns about how released clips could be used, with experts noting the footage might reveal details that could be exploited to manipulate law enforcement.

NBC News reports the sheriff has spoken publicly about the ongoing investigation, urging caution and describing the persistent inquiry.

Neighbors report eerie or unfamiliar activity in the area, with FBI involvement and residents sharing information about suspicious individuals near Guthrie’s home.

Authorities are exploring whether a Wi-Fi jammer or other electrical disruption was used to aid the abduction, forming part of the crime theory.

The sheriff’s office reiterates the possibility of electronic disruption as part of the abduction scenario under investigation.

Evidence includes a masked armed figure seen on camera, vegetation used to obscure lenses, blood at the doorstep, and digital clues from Guthrie’s hearing aids that could link to location data if her phone is available.

A damaged utility box near Guthrie’s home is among recent points of interest, with door-to-door neighborhood outreach and Savannah Guthrie returning to the Today show amid the investigation.

Authorities note the damaged utility box as a development while continuing the broader investigative efforts surrounding Guthrie’s disappearance.