Grid Searching News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Opening. i think it was very, you know, instrumental to get us to where we are at this point. >> reporter: authorities have not confirmed this is petito's petito's body was found under a small grove of trees on sunday. memorials continue to grow in florida and the wyoming countryside where a single cross of river rocks sits as a silent reminder of a young woman taken from her family far too soon. after the autopsy confirmed the body was petito laundrie's parents released a statement saying may gabby rest in peace. investigators are headed back out to that marshy swampland to continue grid sear...

Searching with side scanning sonar to find likely wreckage locations, and then drop underwater vehicles down to search him. dropping a diver down at 140 feet is dangerous to begin with but the bottom time for the diver, if it's a scuba diver s very limited. they've got to get underwater vehicles down on probable wreckage results from the sonar scanning. if they can't do that it's going to be a very drawn-out affair. >> david, give us some perspective. how much longer can the victims and the plane remain underwater before important clues are simply lost forever? >> well every minute that goes b...