Gabby Petito: New details on intense search for fiance Brian Laundrie I LiveNOW from FOX

The only person of interest in Gabby Petito?s case has yet to be found, and now that investigators believe they have found her body, their efforts to track him down have since intensified. On Tuesday morning, police announced they were resuming their search in the Carlton Reserve, the 25,000-acre park in Sarasota County, where crews were over the weekend.