TUCSON, Ariz. — More than six months after Nancy Guthrie disappeared from her Tucson home, a neighbor says FBI agents were recently seen searching the desert brush behind the property, even as tension between federal and local investigators over how the case has been handled continues to surface publicly.

The neighbor, who lives just a few houses away, told Fox News Digital she spotted agents combing the scrubland behind Guthrie's home in late July, just days before the disappearance reached its six-month mark on Aug. 1. She said she recognized several of the faces from earlier searches conducted in connection with the case. A spokesperson for the Pima County Sheriff's Department said no task force investigators had recently returned to the area, leaving an unresolved discrepancy between the two accounts.

Weather May Have Reshaped the Search Area

Retired Pima County Sheriff's Department lieutenant and former SWAT commander Bob Krygier offered a possible explanation for renewed activity near Guthrie's property, pointing to Tucson's monsoon season as a factor that could have physically altered the landscape behind her home. "About a month ago, monsoon season started here in Tucson, and a lot of water has come down – a lot of water at once, and it pushes things," Krygier told Fox News Digital. "So it's moved the environment. Rocks have been pushed away."

Krygier said floodwaters in the area can rise as high as 12 feet, generating enough force to sweep away vehicles, trees and even people. "All that water, it's rushing fast, and it's taken not only the people,........

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