The neighborhood where Nancy Guthrie went missing has breathtaking views of the Santa Catalina mountains and strict limits on outdoor lighting to protect Tucson's standing as a stargazer's paradise. The streets of the Catalina Foothills are lined with Arizona's iconic, giant three-armed Saguaro cacti – and throngs of journalists, investigators, and neighbors fixated on the disappearance of the mother of TV presenter Savannah Guthrie.

It's unbelievable. This just doesn't happen here, said Susan Crosson, who was out for an afternoon walk with her daughter Courtney and newborn grandson. Crosson lives around the corner from Nancy Guthrie but does not know the family. We're shocked, she said. We're locking our doors.

A security guard patrols the Guthrie house, keeping media and amateur sleuths from coming too close.

Outside the property, a sign reads: Dear Guthrie Family, your neighbors stand with you. Laura Gargano, a neighbor and board member with a local group, the Catalina Foothills Association, admitted that some people in the area were beefing up their security since the 84-year-old disappeared. Others are reviewing their security camera footage at the request of law enforcement.

Officers believe Nancy Guthrie was taken from her home against her will at around 02:30am local time on 1 February. There were signs of a forced entry, a security camera had been removed, and police found splatters of blood – which DNA tests have now confirmed belonged to Nancy Guthrie.

Police in Arizona have not yet identified a person of interest in the suspected abduction and continue to investigate a series of apparent ransom notes that may have been sent from the person or people behind the alleged crime.

At least three media outlets said they have received ransom notes via email demanding bitcoin in exchange for Nancy's return, further heightening the sense of urgency and fear in the tight-knit community. Amidst the fear, the community continues to express hope with candlelight vigils held in Nancy’s honor. Ed Coates from St Andrew's Presbyterian Church said, It's heartbreaking for the whole community. She's very loved.\