Only a few years ago, Tuesday’s announcement that a glove believed to be connected to the disappearance of Nancy Guthrie in Tucson, Arizona, had no match in a DNA database would have been a dead end.

As the search continues for Nancy Guthrie, authorities in Pima County, Arizona, have confirmed that no DNA matches were found on a glove discovered two miles from Guthrie’s home in Tucson, Arizona.

A member of the FBI's Evidence Response Ream searches an area around Nancy Guthrie's residence in Tucson, Ariz., on Feb. 11. Police say that DNA samples have been recovered in and around Guthrie's ...