A glove containing DNA found about two miles from the house of ''Today'' show host Savannah Guthrie's mother appears to match those worn by a masked person outside her front door in Tucson the night she vanished, the FBI said Sunday.
The glove, discovered in a field beside a road, was sent for DNA testing. The FBI said in a statement that it received preliminary results Saturday and was awaiting official confirmation. The development comes as law enforcement gathers more potential evidence as the search for Guthrie's mother heads into its third week. Authorities had previously said they had not identified a suspect.
On Sunday night, Savannah Guthrie posted an Instagram video in which she issued an appeal to whoever abducted her mother or anyone who knows where she is being kept. ''It is never too late to do the right thing,'' Guthrie said. ''And we are here. And we believe in the essential goodness of every human being, that it's never too late.''
Nancy Guthrie, 84, was last seen at her Arizona home on Jan. 31 and was reported missing the following day. Authorities say her blood was found on the front porch. Purported ransom notes were sent to news outlets, but two deadlines for paying have passed.
The discovery was revealed days after investigators had released surveillance videos of the masked person outside Guthrie's front door. A porch camera recorded video of a person with a backpack who was wearing a ski mask, long pants, jacket and gloves.
On Thursday, the FBI called the person a suspect. It described him as a man about 5 feet, 9 inches tall with a medium build. The agency said he was carrying a 25-liter ''Ozark Trail Hiker Pack'' backpack.
Late Friday night, law enforcement agents sealed off a road about two miles (3.2 kilometers) from Guthrie's home as part of their investigation. A series of sheriff's and FBI vehicles, including forensics vehicles, passed through the roadblock.
The investigators also tagged and towed a Range Rover SUV from a nearby restaurant parking lot late Friday. The sheriff's department later said the activity was part of the Guthrie investigation but no arrests were made.
