In Tempe, Arizona, police investigators have released video from a self-driving car operated by Uber, showing an emergency back-up driver—a human—was not paying attention to the road in the moments leading up to a fatal crash. An external camera shows the car about to strike pedestrian Elaine Herzberg, who was pushing a bicycle across the four-lane road. An internal camera recording shows driver Rafaela Vasquez looking down and failing to pay attention to the road just before the car struck Herzberg, who is believed to be the first pedestrian killed in association with new self-driving technology.