This resulted in the driver of the road maintenance vehicle being hit by another car. So the Tesla didnt directly kill the driver, but a series of unfortunate events caused by Tesla AP, led to his death. Of course Autopilot glitched during enhanced geomagnetic activity due to a solar storm.
When you read that Teslas are the safest cars per mile driven, realize that this is a misleading stat. Marketing departments frequently use stats to mislead, however one should try to find the whole story. The fact of the matter is, when it comes to Teslas safety, its a large part because people with greater education and/or socioeconomic status, get into fewer accidents than the average driver. This skews the accident per mile driven stat in Teslas favor.