bob hamilton is retired now, but he attends brown's parole hearings to make certain he stays in prisonand that candra never has to see him again. candra is remarried, has a family, and a new life. she credits forensic psychiatry with helping her move beyond her horrifying ordeal. >> i guess a fact that somebody explained to her and explained publicly why she had these confused stories, that she wasn't nuts, and there was a logical explanation for it, gave her a great deal of emotional relief. >> but it was ballistics and the physics of gunpowder patterns that provided conclusive evidence that tom brown was lying. >> i thank god for forensics. i think that they solve a lot of crimes. and the fact that the angle of the shot and the type of gun that was used and the powder burns were all proof that this, you know, that it did not happen the way that he said it did. so i was very thankful for that evidence. >> you can have five witnesses to a crime, and you're probably going to get five different scenarios. you do the forensic science, you're going to get one. and that's it. >>> for the fi