investigators in florida say they ll be working all week end searching for brian laundrie in a swamp nature reserve. he disappeared ten days ago and now the subject of an arrest warrant for his activities following the death of his fiancee, gabby petito and while the humt goes on, a memorial service will be petito will be held of sunday. reporter: tonight, authorities still searching for gabby petito s fiancee brian laundrie that s not been seen for over a week. brian left the house headed to a nearby nature reserve without his wallet or cell phone. the multi agency search so far turning up no clues to his whereabouts. it s upon us to search this area as best as we can, as massive as it is with the resources that we have to try to find brian. reporter: police say laundrie returned on september 1st without his 22-year-old fiancee.