Apparently the guy on the flag is Eric Sheppard:

washingtonpost.com

University police doing extra patrols of campus because of the protests found a backpack they said belonged to sophomore who was one of the students involved, containing a handgun.

They issued a statement:

“Unmistakable evidence has now been located by law enforcement linking the gun to Eric Sheppard. Based on that evidence, an independent judge has issued an arrest warrant for Eric Sheppard. … Although there was an extensive search for Sheppard by law enforcement and he was not located, he is now wanted and considered armed and dangerous. There is no evidence at this time to reflect that Sheppard is on university property and in fact, law enforcement now believes he is in hiding.”

[…]

“That flag represents white supremacy racism which is plaguing the entire earth, so when we step on that flag we are stepping on racism, white supremacy,” he said in the video.

[…]

He said the flag represents lies, deceit, and “things that were erected alongside our genocide and our holocaust.” … I’m a terrorist toward lies. I’m a terrorist toward liars. I’m a terrorist toward those who are wicked. So yes, I am a terrorist toward white people,” Sheppard said. “What I’m saying to you all is a warning of death that is coming upon this nation.”

So OK, the guy seems to be a racist scumbag, but I don’t see how it is at all related to the current situation.