and back again. she plays a key role. >> she plays a key role. we love to ask the question why women don't leave because he insisted he hit or kicked her three or four times a week. he kept a gun in the house and was constantly practice with it. it sends a message you're being controlled. he videotaped them all the time. we love to blame her for not saving her daughters. we have to remember how young she was. we say she was a frog boiling slowly. she adapted her behavior to his control, to the point where she was almost like a mindless sheep. she was incapable of defying him because she was consumed with fear of what would happen if she really stayed away. would he come after her? would he kill her parents like he threatened? >> you can see how torn she is. what do you think people can can learn from this, from an environment like this that is so persistly, persistly bad and then ultimately you see the murders? >> yeah.