ej johnson: we weren't completely focused on michael at first, but he definitely was in our crosshairssuspicious of michael from day one, when he and his partner went over to tell him renee was dead. before they could say much of anything, he'd handed them a card for his divorce attorney. we start talking to him about, we would like to talk to him about renee and something had happened to her. and he's basically saying, yeah, my lawyer stated that i shouldn't talk to the police. andrea canning: michael eventually hired a criminal defense attorney to communicate with detectives. police got a search warrant for his house, but they didn't find anything linking him to the murder. however, they found something else. during the search, a detective tapped on a beam. it sounded hollow. it was. and hidden inside, a number of hard drives was scanned pages of michael's writings. ej johnson: he had a lot of documenting journal-type things with his feelings about renee. we started going through all these journals. the journals are not so complimentary of renee. no, not a bit. he had an absolute hat