>> but the prognosis was very bad, wasn't it? machines were -- >> yeah. >> --keeping her alive at that point even, huh? >> yes. >> reporter: the friends all kept an edgy vigil for news about kay's condition, waiting for her husband to get to her bedside. lives all changed in an instant. a home invasion and burglary in broad daylight. a woman fighting for her life. and now a perpetrator on the loose. >> you don't know whether you have a guy on the move who could be ready to bust into another house along here, right? >> exactly, exactly. we don't know if we had a mad man on the loose here, you know? >> you settin' up security on these streets? >> on every one of these streets, we're goin' to every one of these houses. we're stoppin' anything that comes in or comes out of this whole neighborhood, we're talking to everybody. >> it's your neighborhood. and -- >> yeah. >> there's somebody out there who's apparently a very violent person. >> yes. >> you gotta be terribly scared. >> i was. i'm thinking that there's someone who's walkin' around the neighborhood watching and seeing when people are leavin' and basically attacking or -- >> reporter: on hot springs drive, the investigators knew