Maybe she wasn’t a suspect back then. Especially if the husband of the deceased was trying to protect her from coming under scrutiny? And DNA testing has only been around a little over 20 years and being able to test smaller DNA samples is a more recent development. However, I’d hate to think that the cops were protecting her back then.
That's the whole problem. She should have been #1 suspect. If she had been, they would have found out a few weeks after the murder, she alleged her, "service weapon" had been stolen out of her vehicle.
The parents of the victim told investigators an LAPD cop had been stalking their daughter, right after the murder. In fact, the victim had even told co-workers the same. The co-workers were not even interviewed.
This was no burglary, and those at the time should have known this. Since when do burglars bite their victims, and beat them so severely, as if they were jealous lovers?