I hear that there is video available from inside and outside the car which will hopefully shed some light. Most likely will show that the woman simply walked out in front of the car without adequate time to cross. I bet it would of happened even if the car was not autonomous. It does every day! There is no way the babysitter behind the wheel can react as quickly as a normal driver. He is probably as relaxed as the passenger in the rear seat.....well maybe not on his first few drives!