By protest leaders?? WSJ says yes.
I can’t read that article without paying.
Note that the page is labeled as “OPINION | COMMENTARY” (visible even if you are blocked from most of it by the paywall). It will be obvious as such if you read a print newspaper (it will be in the opinion section), but many people may not notice on the web (not limited to the Wall Street Journal, of course).
Of course, lots of other news organizations much more freely mix opinion with news rather than keep opinions in their own section like traditional print newspapers do, probably with greater intentions to mislead.
The author has previously written extensively about the Mizzou situation for a number of publications. Also a full-time writer for the WSJ now. I’d say odds of accuracy are extremely high.