This is just an observation that I have wanted to put out there. Being raised by a sociopath mother (and not knowing that until I was in my 40's) - there were aleays problems around the holidays. I think its because there are so many emotions that surround them and they don't "do emotions". Xmas, MY birthday, Easter, every year - I remember in my late teens and all of my 20's how I had gotten to "not want to go over there" and actually dreaded it sometimes. I was on my own with my own apt so it helped.
I'm noticing in this case - problems around Holidays -
Valentines Day 2010
Aug 2010 pub intox arrest in Tye, Tx(IIRC BD's birthday is in Aug)
Aug 2009 pub intox arrest in Snyder - again BD's birthday month
and we've hear "rumors" about a blow-up around Christmas.
Sociopathic behavior is all over this case. The other holidays - 4th of July, Labor Day, Halloween, don't matter so much - although I can remember a few big blow outs on the 4th.
I'm leaning to "something" happened over Christmas. Whether that something included everybody - SA, Bd, Hailey and DD even possibly CD or just SA and BD - I don't know. It it would fit the "pattern".
All the above is JMHO