>> uh-huh. >> didn't show there wasn't a rape. >> while cara was at the rape crisis center, the detectives received new information from the crime scene. such as, first responders believed the house lights had pretty much all been on when whatever happened happened. remember, cara said it was dark in the house, but -- >> once we gathered a little bit more evidence from the detectives working the crime scene, then we did get definitely more pointed in our question and more direct. >> and then something odd happened. cara changed her story. remember, she told 911, my ex-husband raped me. i shot him. >> breaking into your home. >> but now? she said she didn't know who was coming into the house. >> somebody was in my home, whether it was jay or jack the ripper. i was scared. somebody came in the house unannounced. >> could have been j.j. or it could have been jack the ripper? really?