While I love to sleuth... I just don't get how the simple facts, proven by the ME's report (see link below) still cause the need to find some other excuse for DS's chosen criminal behavior that day.
DS a victim???? No! DS's toxicology report proved that she had a blood-alcohol level of 0.19 percent - twice the legal limit. That is the equivalent of 10 shots of 80-proof liquor. Its also been reported by witnesses that she was seen on two seperate times that day pulled over and appearing to vomit prior to crashing her car head on into the Bastardi's car, so who can really say how much more alcohol she had really consumed. The alleged alcohol source, her gallon-sized vodka bottle, was found in the car wreckage. DS was also high on marijuana (which tells me that she must have associated with drug dealers to get that, because I doubt it came with the McD's happy meal).
http://abclocal.go.com/wabc/feature?section=news&id=6995282
For me, the "how" has been proven, it is the "why" that we may never know... IMO - the simply truth is that DS was a very drunk and stoned driver who killed her her own daughter and her three nieces, along with three other adults, and maimed her son.
I wonder what this thread would have been like if it was man who was the driver that day and committed this horrific act of carnage... would some seek other reasons? or simply call the man what he was proven to be - a drunk driver.