I hope this isn't OT, I just listened to this and thought it was super applicable. This week's episode of This American Life was called
See No Evil (you can listen to it at that link), and it had a segment that reminded me so much of the Anthonys and almost made them make sense in a way. Basically these brothers' mom goes missing in New Jersey and one of the brothers was the last to see her, and the other family all rally around him. They tell Law Enforcement that he has been unfairly marked, that LE isnt' even looking for the "real" killer, they're being lazy and just want to close the investigation. All because they just can't fathom this guy having done such a thing.
Well (
SPOILER, if you want to listen to the ep, it really is a good one)- turns out the mom, unbeknownst to the public, had a major drinking problem and a massive temper, and had snapped on her boys many times. In this particular instance (when she was killed), she had shown up at one of the guys' houses that she owned and he was caretaker of and found it to be massively filthy. She lost it and started screaming about how she wished he'd never been born, up so close she's spitting in his face when she's yelling, and she shoved him. He shoves back, she tries to put him in a headlock, and then he basically grabs her neck and doesn't let go until...
He keeps the body in the house for 4 days, and finally dumps it like 5 miles from the house. His brothers and sisters-in-law absolutely do not think he had anything to do with it until they finally beg him to just tell them what happened, they make him close his eyes and walk through the events of the evening, and he finally comes forward with what happened. Now it's years later and they still can't understand it, they love her and him but hate what he did and can't wrap their brain around how he kept the body there.
There were SO many parallels between this case in New Jersey and the Anthonys. IMO the key to this whole thing is the physical altercation between KC and CA when she brought poor Caylee back from Mt Dora, I think that fight was the straw that broke the camel's back, as they say.