with the fact that lindsey patterson made a mistake, you have to actually believe that lindsey patterson really hallucinated about everything that she saw. reporter: and what made lindsey s story all the more convincing is she told it before she found out what happened to cristi. she dialed 911 a full minute and a half before anyone from the hall house did, before lindsey had any idea how it would end. here s what the jury heard her say in that call. and i saw him put her under waternd hold h there. repter: and she was still on the phone with 911 when chris came outside and saw his wife floating in the spa. and now he s sitting outside. reporter: the investigator, tom dove. i heard it best described during the trial as al cosmic coincidence that someone could see something that they perceived to be more than just some kind of kinky action in a