This is a mystifying tragedy. It was stated that she drove on the Taconic many times before so it doesn't seem that she was lost. If she had the good sense to pull over and call her brother, what ever possessed her to start driving again. Since she had just used the cellphone, how could she have forgotten it? It also doesn't make sense that she and her husband did not follow each other. She had five children in the car under 9 years of age and her husband was riding with a dog? It sounds to me that they might have had a fight which explains why he went his separate way and why she called her brother instead of him. Of course the kids were probably a big distraction, but not to see or hear other motorists waving and honking at her. I'm sure that the older kids would have brought her attention to it, or might have even noticed that she was going the wrong way. The husband and brother need to be questioned in depth. There is really no good explanation for all of this. It makes me think that this was deliberate.