Nancy Guthrie — Catalina Foothills regional geospatial review

Collection status

NOT YET ASSESSED — sensor acquisition and FIRMS archive request required

Determine whether publicly archived satellite acquisitions and NASA FIRMS observations over a broad north-Tucson region during the two weeks before the disappearance yield any defensible regional environmental anomaly or useful coverage/absence conclusions. Do not attribute broad imagery changes to the crime without specific independent corroboration.

No home address, property pin, neighbor-specific map, private resident identification, or person/vehicle inference is published.

Satellite acquisition inventory

Original satellite acquisitions are being catalogued; no scene interpretation is asserted yet.

NASA FIRMS historical thermal review

Archive status: NOT_RETRIEVED

No historical archive observations independently verified yet. No-data is not a zero-detection result.

Reporting timeline and sources

• FBI Phoenix: FBI reward announcement and Catalina Foothills location
• Pima County Sheriff's Department; CBS News: Timeline of Jan 31 last confirmed sighting and Feb 1 discovery
• Pima County Sheriff's Department; KOLD: September ransom message assessed not credible
• Pima County Sheriff's Department (reported by Fox News): October task-force DNA work update
• NASA LANCE: FIRMS archival request and resolution limitation
• European Space Agency: Satellite evidence in the courtroom; collaboration with Police Scotland

Information for investigators

Satellite observations cannot establish who entered a residence, a vehicle's route, the perpetrator, or a victim's location; no community tip should be published as fact. FIRMS no-data/no-detection does not exclude a small fire. Results must be read as source-coverage assessment, not criminal findings.

Submit original evidence directly to the FBI. Do not publicly accuse individuals.