The FBI says it recovered a DNA sample from the glove, which was found in a field a few miles from Guthrie's home.

Pima County Sheriff Chris Nanos told CBS News the suspect's backpack is one of the most promising leads in the case, as the search continues for Nancy Guthrie.

Law enforcement agents have been gathering more potential evidence as the search for “Today” show host Savannah Guthrie’s mother heads into its third week.

In what may be the most promising lead in days, authorities are testing the DNA found on a glove recovered near Guthrie’s home, which appears to match the one worn by the masked suspect shown in doorbell camera footage on the day of her disappearance.

The race against time intensifies for missing 84-year-old Nancy Guthrie as investigators rush DNA processing while she remains without vital medication.

Nancy — the mother of 'Today' show co-host Savannah Guthrie — was reported missing on Feb. 1

The search for missing 84-year-old Nancy Guthrie, mother of “Today” show host Savannah Guthrie, has stretched into a third, anguished week, with mounting pressure on investigators and a family grappling with uncertainty.