Exactly. We forget sometimes that just because WSers know more than the average person on the street about this case, doesn't mean we know everything.
Also, we try to take a short cut from evidence to arrest. We don't understand why, since there is evidence of this and that, the supsects haven't been arrested.
But there are no shortcuts, not for LE and prosecuting attorney who are thinking not just about charges, but who have to think ahead to trial. They have to do a incredible job of multi-tasking: finding evidence and trying to bring the baby home; while at the same time projecting into the future and thinking of what the defense attorneys will pick apart.
I think they have a lot of their ducks in a row; but that there are still a few stragglers lagging behind that they need to herd into line.
We are impatient; but LE can't afford to be.