In Nashville they dragged and injured a cop. Last fall a group in New York killed a cyclist as they were riding around and knocking people of bikes and disrupting traffic.
https://www.nbcnews.com/news/amp/ncna984321
Seems like these packs of ATV and dirt bike riders pop up in cities all around the country, periodically.
What's the deal with these A-holes? Are they actual clubs of riders or is more like a social media flash mob, wilding kind of thing? What a bizarre phenomenon.