lynn knight. >> torrance police arrived minutes later, the apartment was quiet, and lynn knight was dead, lying on her bed in a pool of blood. he detective emiliano perez had never seen anything like it. >> bloody, i can't find other words to describe it other than horrific. >> so horrific, said lead detective gary hilton, that even now, talking about it, 35 years later, is difficult. >> you'll have to excuse me. >> yeah. >> out of all the ones i worked with, it was toughest. >> no wonder, the victim had been stabbed more than a dozen times. >> -- >> rage, the desire to see this particular individual dead. >> good and dead. >> good and dead. >> but there was another set of wounds that the detectives couldn't figure out, deep cuts on her neck, which may have explained a horrifying sound that woke up lynn's neighbors. >> how would you describe that screaming? >> a squeal. a loud squeal. >> after he heard that, said a neighbor, he caught a glimpse of the man who may have been the killer. a slender young man with dark, curly hair. not much to go on. >> he looked at the back of the suspect as