investigators used a new tool called web test. >> that's the web enabled tem temporal analysis system. it assists with information analysis against databases. >> it co-lates information from cell phones, e-mails and ez pass trips. investigators compared all this data from the three main people from this case, susan fassett, dawn silvernail and fred andros. >> the majority of those communications were from fred to dawn. what that indicated was that fred was not only planning some activity, but also preparing the conspiracy. >> the evidence corroborated dawn's story. >> the records reveal that within 15 or 20 minutes of the time that she killed susan, she stopped at a pay phone and paged mr. andros to signal him that it had been done. if you accept what fred andros