continues for her fiance braundry. it s been more than a week since he was reportedly last seen and cnn s amara walker is joining us from venice, florida, where authorities are scouring a large nature reserve again today. do investigators have any leads that we know of, amara? reporter: no, none that we know of right now, and ana, this is a fifth day that search teams have descended upon the carlton rugged reserve here and still no sign of brian laundrie. no dive teams have asked out after divers spent much of the day yesterday searching but their search turned up nothing. i guess the question now is how long will law enforcement continue to focus on this reserve? i can tell you that a few hours ago we saw about three all-terrain vehicles leaving the sight. we don t know what that means or if it signifies anything about the scale of this operation, and you also mentioned one of the last sightings of gabby petito.