Hm, there have been other crashes where the 'driver' in the car died (I recall one where a car in autonomous mode rear-ended a truck, something about how the sensor was blinded by the setting sun? And it had alerted the driver to take control several times before the crash) but this is the first incident I can recall where a pedestrian was struck and killed by an autonomous vehicle.
IIRC in that case the driver T-boned a truck crossing the road, because the side of the truck was so shiny that it read as the horizon to the car's sensors.