in the prime of her career. >> althea kennedy was sherrie's boss and had originally hired her. >> we couldn't believe it, first of all. it was like how could someone do this. people crying, people upset. the hospital was like a tomb, you know. so the loss was real palpable. >> sherrie had just been married three months earlier to a high-tech engineer named john ruetten. were they happily married? >> unusually so. >> just months after the wedding, john found sherrie sprawled dead on the floor of their home. he might seem a likely suspect, but john was cleared almost immediately. the lapd focused instead on evidence that this was a burglary that turned violent. >> this was no accident. >> yolanda mcclary is a retired crime scene investigator and was