Authorities in Tucson, Arizona, are searching for 84-year-old Nancy Guthrie, who went missing after last being seen near her home on January 31. A large-scale investigation involving local law enforcement and the FBI is ongoing.
Officials have cleared her family and those closest to her, stating they are cooperating and not considered suspects.
Investigators are focusing on evidence from the scene, including doorbell camera footage and items believed to be linked to the suspect. A reward for information has been increased to encourage new leads.
The search continues as authorities work to determine what happened and locate Nancy Guthrie.