Of course not! It's never okay to kill people. But she is at least partially to blame for her own death. If I take a nap on some train tracks and get run over, is my death 100% on the train engineer for not stopping even though I was in plain sight for 30+ seconds?
You are taking this into ridiculous extremes. She wasn't taking a nap in the road, and a car is stoppable at a far smaller distance than a train. Your argument boils down to "it's her own fault for existing outside a car, shit happens."