elyse hanlon, scott sherwood's wife. the stand she recalled a conversation with paul where he told her that he committed the murder and that he did it alone. >> scott had nothing to do with it. there's no way scott's getting into trouble. scott had nothing to do with it. >> and he told her i went up there with him, he drove, i went in, i did everything. >> three people in three different rooms, telling us the same thing. you may not be able to say we have a fingerprint or we have dna, but that's pretty damning evidence. >> reporter: the last piece the prosecution needed was motive. why would paul want to kill his wife, catherine? simple, they said. money. when catherine died, paul cashed in on her life insurance policy and homeowner's insurance. it all totaled around $700,000. >> the defendant said he would kill catherine and burn up the evidence, and he did just that. >> reporter: now it was the defense's turn to attack. jurors would hear more about the checkered pasts of the witnesses at the very heart of the case. >>>