It has to match technique, motive, what terms the assailant uses as "shorthand" for the attack, how many people were in a group the attacker, whether or not the attack was recorded, whether or not laughter is involved, and so on.
Like the attack with a brick? Not knockout game, used a tool.
The police and other parts of the government bureaucracy don't want the public to become alarmed or appropriately careful.
And according to a previous police statement in a similar incident...if the video is not uploaded to the interwebs, it ain't The Knockout Game.
I wonder...what will they call the game where white folks with guns go hunting black perps who knockout white folks?