judy and allen. recorded phone calls is unusual. it is a sign of a troublesome marriage. >> judy's twin sister said both partners were having affairs, and that judy knew allen was recording her phone calls. >> we kind of figured we were being recorded, so there was some things that we completely fabricated, just to see if it would come back, and it did. and at that point, knowing my sister and knowing how bull-headed she is, at that point, it was almost like a game. >> he had had at least two affairs in the past that she knew of, and that she had an ongoing affair at the time this occurred. >> allen and judy slept in separate bedrooms. they told friends they only stayed together for the sake of their 5-year-old son. >> jacob loved his daddy, and judy wanted that love to be preserved. she didn't want to separate the two of them. >> but their relationship became increasingly tense. two days before her murder, judy told her sister she and allen had decided to separate. >> she was very afraid that day. she was afraid that day that allen was going to kill her, because it had gotten to the point where their relationship was maybe a little more hostile, not