What investigators discovered inside Nancy Guthrie’s home prompted a major shift in how the case is being handled. Authorities now say the disappearance is being treated very differently.In a new update shared during a press conference, the Pima County Sheriff’s Department said investigators proceeded to the scene inside Nancy Guthrie’s home. What they processed there is why they now believe a crime occurred.The case initially unfolded as a standard missing person investigation, prompting the deployment of search and rescue teams, volunteers, and Border Patrol canines.

That assessment changed after investigators processed the home. “As I said yesterday, we saw some things at the home that were concerning to us. We […] do in fact have a crime scene. [..] We do in fact have a crime,” Sheriff Chris Nanos stated.The shift also heightened concern because of Nancy’s medical needs.Authorities emphasized that Nancy, 84, has physical ailments and requires daily medication. During the press conference, officials warned that she suffers from a condition that missing that medication for 24 hours “could be fatal.”Time, the sheriff department says, is critical as they continue the investigation and ask the public for help. Nanos urged anyone who may have seen something to report it immediately, including taking photos or video if they believe they spot her, and to call 911 or submit an anonymous tip through 88 Crime.