A floodlight has seemingly been removed from Nancy Guthrie 's back door as investigators rake through her property to find clues about her disappearance. Check out the photo yourself -- a screenshot from a video taken by Fox News on Friday shows a white floodlight on the right side of the Tucson, Arizona home's blue door. On Saturday, footage shows there is no longer a white fixture next to the same door. It's not explicitly clear why the floodlight was removed ... but as our own Harvey Levin