natalie morales (voiceover): norma peterson had seen it.hird wife, norma peterson had seen it, her brother in law drew's marriage to third wife kathleen savio was a disaster. their breakup, worse. which is why kathleen's sudden death never sat right. >> so now you are going to come and tell me that there is a 40 -year-old woman who drowned in a dry bathtub two weeks before you guys or support to settle everything in court, financially? it just seemed too convenient for me. >> then, she saw the past repeat itself with the truth next wife, stacey. his need to control. >> how early on in their marriage did she confided in you the problems that they were dealing with? >> i knew that they were having difficulties. she did not hide any of that. he would just call her incessantly. one time when we were out and i answered the phone, i finally just told, them we are out. we are having a girl's dinner. >> she saw signs of violence. >> i happened to catch a -- what happened? walter pushed me up against the tv. >> at the time, norman did not report con