Investigators working on the disappearance of “Today” show host Savannah Guthrie’s mother are consulting with Walmart management to develop leads. That's because a backpack the suspect was wearing is sold exclusively at Walmart stores. Chris Nanos, the sheriff of Pima County, Arizona, told The Associated Press in a text message on Monday that the suspect's “Ozark Trail Hiker Pack” is the only clothing item that has been “definitively identified.” Nancy Guthrie was last seen at her Arizona home on Jan. 31 and was reported missing the following day. The Federal Bureau of Investigation released surveillance videos of a masked person wearing a handgun holster outside Guthrie’s front door the night she vanished. Read moreNancy Guthrie kidnapping investigators work with Walmart after identifying suspect’s backpack

The FBI says a glove containing DNA was found about two miles from Nancy Guthrie’s Arizona home and appears to match those worn by a masked person outside her front door the night she vanished. The glove, found in a field near the side of the road, was sent off for DNA testing. The discovery was revealed days after investigators had released surveillance videos of the masked person outside Guthrie’s front door in Tucson. Guthrie is the mother of “Today” show host Savannah Guthrie and was last seen at her home on Jan. 31. Purported ransom notes were sent to news outlets, but two deadlines for paying have passed. Read moreFBI: DNA recovered from glove found near Guthrie home that appears to match glove worn by suspect