By Erica Stapleton and Jana Winter TUCSON, Arizona, Feb 11 (Reuters) - Sheriff's deputies and FBI agents fanned out along highways, vacant lots and remote dwellings of southern Arizona on Wednesday, combing the desert landscape for clues to the fate of U.

Investigators have reportedly found a black glove near Nancy Guthrie's home in Tuscon, Arizona. The news comes less than a day after the release of security footage showing a masked person wearing

Investigators canvass Annie Guthrie's neighborhood after the disappearance of Nancy Guthrie, the 84-year-old mother of U.S. journalist and television host Savannah Guthrie, who went missing from her home in Tucson,