Nancy Guthrie latest: Task force awaits forensic results as search enters third week

The search for Nancy Guthrie entered its third week on Sunday, as a task force awaits forensic results from a late-night operation that took place on Friday miles from the 84-year-old’s home.

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The FBI executed a federal search warrant at a house in the Catalina foothills, resulting in four people being detained and later released, officials confirmed to Fox News Digital on Saturday.

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Pima County Sheriff Chris Nanos, who was not present during the search, told Fox News that there were no arrests and “no sign of Nancy was found.”

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Last week, the FBI increased its reward from $50,000 to $100,000 for information leading to the location of Nancy Guthrie or to the arrest and conviction of anyone involved in her disappearance.