PIMA COUNTY, Ariz. -- The search for 84-year-old Nancy Guthrie, the mother of "Today" host Savannah Guthrie, began after she was abducted from her home near Tucson, Arizona, on Sunday, Feb. 1, ...

Abstract: Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal propagation in wireless networks. By smartly tuning the signal reflection via a large number of ...

The rural, dark nature of the Catalina Foothills neighborhood has complicated the search for video evidence. Authorities are analyzing available camera footage, but a key camera at Guthrie's home did ...

A plan to shoot and kill every single mule deer living on Catalina Island submitted by the island’s private conservancy for state approval as a method to re-balance island animal and plant life, has ...

Law enforcement officers arrived at the home of Annie Guthrie on Wednesday, entering the residence wearing gloves and later emerging with a paper bag. Officers were also seen checking the mailbox ...

As the search for Nancy Guthrie stretches into its second week, the FBI said Wednesday that they are now examining roadways along the Catalina Foothills in Arizona. The federal agency’s Phoenix bureau ...

On Wednesday morning, the FBI's office in Phoenix, Arizona, issued a statement saying that they are conducting an "extensive search" of the Catalina Foothills near Nancy Guthrie's home just outside ...

CATALINA FOOTHILLS, Ariz. — The search for Nancy Guthrie continues and authorities look for any clues as to her whereabouts. 18,000 calls, 4,000 within the last 24 hours, have been made to the ...

Southern Arizona has been in the national spotlight as law enforcement officials continue searching for Nancy Guthrie. Guthrie is the 84-year-old mother of "Today" show host Savannah Guthrie, and she ...

TUCSON, Ariz. (KVOA) - The FBI is actively searching several roadways in the Catalina Foothills area as part of the ongoing investigation into Nancy Guthrie's disappearance. The FBI urges media and ...

To the editor: The juxtaposition of our treatment of all animals could not be more stark than in the universal praise for the Wallis Annenberg Wildlife Crossing in Agoura Hills (“Despite appearances, ...