Reading the papers and watching Sky News on a number of occasions there have comments about why it took so long to find the four year old. Scenes like that scene are not normal and the local police forces do not have the knowledge concerning forensics, what they did to the car would have been the best course of action.
When the forensic experts arrived then they would have started at the edge and worked in towards the car. They would have taken impressions of tire treads, boot prints. There is a lot of evidence to be collected from the outside. The police also did not know where the people were staying so they could not go and question neighbours until pretty late and then they moved when they knew about the four year old and rescued her.
All the written about attempts would not have found her as she, from what has been said, hid under her mum’s legs surrounded by possibly cold bags and other bags including the car itself. All of those things would have stopped heat from escaping to be detected and when a body dies it still produces heat it does not go instantly cold and that would have also blocked the heat from the four year old. She did not help, but at four years old and to probably watched her mum, dad and grand mother getting killed would have very likely frozen here. Most people when they hear something like a gunshot stop and look around for the source, only trained people generally do not. When they knew about the youngest they moved and got her out.
Her questioning will be a very long slow process as at four she will likely not have the ability to articulate what happened. The nurses and other carers of her will gently probe her and quite possibly not see the answers to the questions are coming not from her mouth but from her drawings, paintings, etc. That is generally how the young deal with traumatic events.
The investigation will however be continuing with out the answers as from the reports there is a lot of background intelligence now coming forward and from the reports on the evidence that will be the first step. The amount of shell casings, some reports say 15, some 16, the number does not matter, finding the bullets will be a vital aspect as it is from them, either the casing or bullets will give them how many shooters and possibly the general aspect of the weapon and if a silencer was used. From reports it might have as the ex RAF guy would have likely heard gun shots as the site is remote and in the vicinity of the alps and sound echos. Work the motive out and you will likely find the source and maybe the shooter. There is a lot of work still to be done on the car and the four bodies will tell quite a bit as it is likely the car had things that might know things.
So there are a lot of things still to be looked at and analyzed, so it will take a while especially as they are dealing with two separate sites in two different countries.
Update – With the latest reports coming from France are indicating the mum, dad and grandmother were hit twice and the cyclist five times. That to me says the cyclist was in the wrong place at the wrong time, otherwise why basically spray fire at one target because he was trying to get away, the higher number of bullets the greater chance of death. Where being shot in the head twice is targeted with people unable to escape.
I am more interested with the fact the two kids were left alive, that does not sit quite right in my book unless them living is vital for something else. I think a lot of answers will come when the investigators can get to the bottom of the family problems.