On my FB, every time somebody posts a “knockout game” article, FB throws up ‘recommended links” to black history month underneath the post.
Seriously.
:)
Whenever I see a post calling it the "knockout game" and talking in a non-descript way about "teens", I provide a link to
White Girl Bleed A Lot where Colin Flaherty has a few years of documented attacks. There's some history. A study of Detroit over the last 40 years is instructive as well.