trent vileta: when she got mad at someone, she wasn't mad at them. she was enraged with them. she didn't want someone to be embarrassed. she wanted them to be destroyed. dennis murphy (voiceover): agent vileta was now convinced that much as she'd fabricated her stories about the dentist's and both husbands' abuse, tracey had also fabricated her account of what had happened on december 13, 2001. her dramatic description of the break-in, of being chased and choked. her firing deadly shots to protect both herself and her children. lies, he thought, but he could not figure out why. the answer, it turned out, was tucked away in the 10-year-old case file, a top-secret piece of evidence that was going to break the investigation wide open. coming up. he said, there's more to this than what people know. and i said, do you mean that stupid notebook? dennis murphy (voiceover): investigators may have just found the smoking gun. just sitting right in the front seat as if somebody sat at there, you know, nice and neat. and it was not reported about in the news media? never. nope. dennis murp