India, Feb. 23 -- Disheartened volunteers have assumed responsibility for the search for Nancy Guthrie - sifting through the refuse-laden desert ditches and transient camps in proximity to her residence for any potential evidence.

On Sunday, they uncovered a possible clue - a black backpack was located merely two miles from her home.

According to The New York POST, the damaged black bag, identified as Swiss Gear, was discovered within a storm drain that also serves as a site for homeless habitation.

The site was a brief drive from Nancy's residence, who is 84 years old, located in the Catalina Foothills area to the north of Tucson.

At approximately 11 am, volunteer Catherine Lopez found the backpack in the tunnel adjacent to West Oran...