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DNA found on a glove near Nancy Guthrie's home has yielded no matches in the FBI's database, according to Pima County Sheriff Chris Nanos, marking another setback in the search for the 84-year-old mother of "Today" show co-host Savannah Guthrie.
The glove, discovered approximately two miles from Guthrie's residence near Tucson, Arizona, was tested after being recovered as part of the ongoing investigation into her February 1 disappearance. Sheriff Nanos told Fox News that the DNA found on the glove differs from DNA evidence collected inside Guthrie's home.
Tuesday's announcement comes more than two weeks after Guthrie was last seen. Investigators believe she was taken from her home against her will, and the FBI has doubled its reward from $50,000 to $100,000 for information leading to her recovery or the arrest of those responsible.
Last week, authorities released surveillance footage showing a masked, armed suspect at Nancy Guthrie's front door on the night of her disappearance. The FBI has described the suspect as a male approximately 5 feet 9 inches to 5 feet 10 inches tall with an average build. The suspect was seen wearing what investigators identified as an Ozark Trail Hiker Pack backpack.
The Pima County Sheriff's Department is pursuing multiple leads in the case. Investigators are working with the manufacturer of Guthrie's pacemaker in an attempt to locate the device.
Sheriff Nanos announced Monday that all members of Nancy Guthrie's family have been cleared as suspects in the case.
The investigation continues as authorities process additional evidence and follow up on leads in the case. No arrests have been made.