How much fault do I and the other driver have? I left turn then yielded pedestrian and after a while got hit by opposite traffic

I was making a left turn at a green light on a left lane. There was no car in one block distance and no one was crossing the road. However, when I almost finished the turn, a man with a baby stroller crossed the road suddenly. He was walking slowly, so I stopped at the intersection and yielded him. Nothing wrong until ~8 secs later, I observed a commercial van coming from the opposite direction. It was impossible that he couldn't stop. However, he really didn't stop and hit on my car directly on the passenger side front door. It is worth noting that there is only bent but no scratch mark on the door. However, I am not sure if the damage can proof that I was yielding pedestrian during the accident. In fact I completely stopped when yielding. There is no witness and police placed no judge. Please advise.