grand tetons. then gabby texted multiple times with her mom likely from the grand tetons then a final text but the family doubts she wrote it. and september 1 her fiancee showed up at the home they shared with his parents in florida in gabby s white van. ten days later september 11th her family reported her missing. two people went on a trip. one person returned. that person isn t providing any information. reporter: cassy laundrie said they had been known to fight. typical of them both. whenever they fight they take a break and come back and be fine. reporter: the fbi in denver joined the search. aiding fbi in and local authorities in wyoming and utah but as the hours and days tick by the search for answers grows