Can somebody fill me in?

Heard that there was an ugly wreck over the weekend at ThunderHill with Z2 - my source didn't give me much detail, but I'm hearing that an instructor went down with a pillion and had to be airlifted?Anybody have the full story? via /r/Trackdays https://www.reddit.com/r/Trackdays/comments/cvjo9k/can_somebody_fill_me_in/?utm_source=ifttt