dennis murphy: the prosecutor said nique leili's best chance for leaving her marriage came 12 days before she disappeared. after yet another argument, nique had called 911. dennis murphy: officers dispatched to the leili home that day offered to help nique leave. but as this still photo shows, she wouldn't budge from the front porch. she wanted him to go. he didn't want to go. he wanted her to go. she wasn't going to leave without the girls. and so the argument-- they were pretty much at an impasse. dennis murphy: two weeks later, nique leili was dead. in a house where practically everything was recorded, the prosecutor claimed it was no accident that the video covering the crucial hours when nique leili went missing was somehow corrupted. lisa jones: the surveillance system was, in fact, recording during that time period, is that correct? that is correct, yes.