kay's son rushed to their neighbor's house for help. >> 911, what's your emergency? >> my next door neighbor has been robbed and stabbed. it sounded like they might have raped her. >> police arrived to find kay near death. >> her neck was cut as bad as anyone's neck i've ever seen in my life. she was stabbed several times in her back. it was over 25 times. and her neck was cut, basically from side to side. >> as kay was rushed to the hospital, paramedics noticed that her attacker had drawn a smiley face on her back in her own blood. >> the smiley face is one of those chilling details of a crime scene that seem does serve no purpose other than to sort of mock or demean the victim of that attack. >> you have to know that this person's very sick and very violent and possibly a serial killer.