and i brake. and i heard something. i heard a thump. >> that piece of granite again, frances thought, and she continued to chase after bonnie, still hell-bent on confronting her. suddenly, bonnie made a u-turn. >> and as she makes a u-turn, i make the u-turn. she takes off. >> i got a black escalade and a black range rover they're traveling at high rate of speed. i don't know, 90-100 miles an hour that black range rover was. >> an off-duty officer spotted bonnie and frances and called it in. >> they're hauling ass driving on the wrong side of the road acting like idiots. >> frances was still on bonnie's tail, when -- >> i hear this wind coming in. >> the howl of the wind snapped frances out of her trance. she looked back and realized her third-row passenger window was shattered. and then, she realized something else. she couldn't see bill anywhere.