I am with you- so far there is a mountain of evidence that she did kill him, and a lot of unsubstantiated theories how she didn't.
Here is a great example of excellent defense attorney 101: the judge is allowing an "expert" to testify that the wounds are consistent with a dog bite, which they absolutely are. She is preventing her from testifying they are inconsistent to a car accident. Why? Because technically they are consistent with anything that could scratch your arm which includes Dogs, cars, racoons, bushes, fences, Jedi's or anything you would like to make up. The defense would like you to think its a dog, and forget that all the other evidence points to a car. They don't have to ever be right to win.