made a mistake, you have to actually believe that lindsey patterson really hallucinated about everythinge 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 jacuzzi in the morning and then it turned out that a woman drowned in that spa. that is not a coincidence. that is what she saw. >> reporter: the prosecution's theory, somehow sitting in the spa that morning, chris was overcome by some private fury. who knows what. a hidden