Authorities have been summoned back to the Tucson home of missing 84-year-old Nancy Guthrie, even though the sheriff's office says the latest call was unrelated to her disappearance. The return to her Catalina Foothills residence has reignited questions about what investigators may still be searching for.
The latest activity at the home underscores how tightly the disappearance remains linked to the property, even as investigators chase fresh leads and re-examine earlier evidence. The case has become one of the most closely watched missing person investigations in the US this year.
