yeah, they need to start with the family, ALL of the family, and move from there. however, maybe they've already done that. i don't know enough about the case.
i will say this: it sure seems to have dropped off the national radar rather quickly.
I am going to say this and I mean no offense but it is the reality of the Criminal Justice system as a whole.
It is two dead girls from a lower social economic demographic family that is probably the main reason. Also sorry to say that usually those areas do not have the best trained officers and fortunately for the community they (because of the rarity) do not know how to run a tight investigation of such a crime. I do not watch much TV so I had no idea Grace did anything, she is crazy but often she has great instincts.
As for the family it is sad that we have to start there but like I said that is often your first "known" to work with but that Sheriff IMO seemed just out of his league from jump street.
The Caylee case def took a lot of things off the radar just by the nature of the case and all the questions as well as the actions of the whole family.