with 149 innocent people into the french alps. >> larry schiavo works for families and victims after airplane disasters. good morning, mary. >> how unusual is it that investigators have left the scene and it's barely two weeks after the crash? >> well, it's unusual in that ordinarily, they are looking for the cause of the crash and many times in these accident investigates or in this case intentional crash investigations, you have to get so much more of the aircraft because you have to piece it together. it's pretty typically when you're looking for the cause to do an accident or plane crash reconstruction and for that you literally pick up every piece that you possibly can. hear since they know the cause and probably a good thing they are getting on with the investigation and issue the recommendations because it's those recommendations that the european aviation safety agency, the oversight body for europe's aviation, can make recommendations and get nations to imply. and,...