Arizona Sheriff Shares New Detail Connected To Surveillance Footage From Nancy Guthrie's HomePima County Sheriff Chris Nanos told CBS News that the clothing and face mask worn by the suspect caught on Nancy Guthrie's doorbell camera footage released by the FBI last week were purchased from Walmart.Investigators were already working with the retailer to trace the sale of the Ozark Trail backpack worn by the suspect after it became known that that particular style of backpack was sold exclusively at Walmart.Guthrie, mother of the "Today" show's Savannah Guthrie, vanished over two weeks ago.Read more at CBS News:See All Updates