I finished chapter 3 today and I still don't know who the dead woman is.
But I'm not nervous yet. Usually a character's identity is revealed to me eventually. It will have to be within the next few chapters so I can advance the story,
I used to keep a sign on my bulletin board that said:
ADVANCE THE STORY
It's not a bad thing to do. The sign, that is. It doesn't matter what kind of novel you're writing you need to always advance the story. I'm not talking about cliffhangers here. Just keep the story moving along. No flights of fancy, please.