prosecution's experts testified there was no doubt justine crossed the center line and veered into erin thompson'sthe crash. but a forensic engineer hired by the defense said his research turned that finding on its head. he claimed it was erin who drove out of her lane in that construction zone and struck justine. and the defense went further, claiming that slap mark on the 85 mile mark on the speedometer of justine's car, was planted there by investigators. that the black box that measured speed and braking was plain wrong. that justine always wore her seat belt. and finally, a psychologist said what actually a lot of experts said that a spat with a boy wasn't enough to lead to a suicide attempt, and those texts? they should not be considered a suicide note at all. >> it was a way of exercising power and control. in the relationship. to make that kind of threat. but it was always clear that it was never meant. >> what would justine winter say about what happened here that night, about those texts? the jury would never know. she did not testify on the advice of attorneys, said her family, and, of