they turn to attorney steve lungen. >> so despite this top it was an accident. >> yes we had a fire,a death, the question of how the two of those items were going to come together we're not quite the -- actually years later. >> the police, as they often do, began by interviewing's soon to be ex-husband, paul novak. >> what happened in the interview as far as the questions they asked you, how they treated? you >> they asked me about catherine's whereabouts, if they she had anywhere friends at the time, who would be in the house, and utilities in the house that would've had a problem, things like that. >> the interview was routine, but the investigation was not. firefighters cannot figure out what ignited the blaze. they check the wiring, the appliances, the pilot stove, the propane tanks, nothing conclusive. but then, things changed. the da brought in a specialist, a forensic pathologists to do a second autopsy a few days later. and the results this time told us different story. >> we knew she did not die in that fire, she died before the fire. >> the second pathologists discovered th