How do you know he’s guilty? Women do lie about rape (e.g. the Duke Lacrosse case, Mattress Girl, The UVA frat case, and many, many others...just like there are many phony “hate crimes”), and getting a fair trial in N California is not likely. I know; I lived there.
If I recall correctly, it wasn’t the victim’s testimony. Someone riding a bicycle in the alley saw him. The victim was unconscious.
I don’t think the Mattress Girl was proved to be lying, like the other two you mentioned.
Two graduate students were cycling by, and saw Turner on top of an unconscious woman and confronted him and he ran off. These two witnesses did not know Turner or the victim, and seemingly have no reason to lie.