mr. democker. >> reporter: steve began dating renee when he was separated from carol. they were together during that tumultuous time, steve's divorce, carol's murder, his arrest. renee had always stood by steve and his family but sechez had a feeling. >> we were pretty convinced that she knew more than she was telling us. >> reporter: sechez knew something else too. during the trial renee broke up with steve. so on the eve of her testimony sechez interviewed renee again about that "anonymous e-mail." what he discovered? explosive is not too big a word. >> steve was terrified. >> the e-mail trail. the money trail. a winding trail of surprises was about to change this case. ♪