Oh sure, now that LE is telling them they may be facing felony charges, they are jumping the gate to give LE anything they have, no matter what. Problem: too late, they already tried to pull the wool over LE's head. It didn't work, they got caught and like KC, they want a do-over.
None of them do the right thing until they are pushed against a wall with no where else to go, then they want to apologize, call everything a miscommunication, an inconsistency, etc. and want another chance. Problem is they still don't tell the truth, they just rearrange their lies.
Caylee didn't get a second chance.