A pediatric doctor at the Children’s Hospital of Philadelphia was killed while riding her bike in Center City on Wednesday night.
https://www.nbcphiladelphia.com/news/local/deadly-3-car-crash-rittenhouse-philadelphia/3915690/
The original post on the Philadelphia subreddit https://www.reddit.com/r/philadelphia/comments/1e5wkv0/insane_accident_on_18th_and_spruce/
While I agree with the car centric aspect of this, you should read the article. The top bullets are more specific, and the driver may have had a medical incident.