Terrified Howling News Today

>> and she says this womans just screaming. >> all right. >> reporter: whole complex must have heard it. terrified howling, desperate. >> is she okay? >> reporter: there was a man down there. they could see him. he had a knife. he was stabbing the screaming woman. and nobody was helping her. >> its really bad -- >> all right. i understand. we have officers on the way. >> too late. too late. >> oh, the ambulance is here. theyre doing cpr on somebody. >> the bloody ending. but the story, the whole...