Of course it was about suppressing of free speech. Those people were protesting that day about the presence of the national guard on campus.
They (national guard) were on the campus at the instigation of the governor of Ohio even though no state of emergancy had been declared.
The fact that a building was burnt down the night before is a matter for the fire department and police, not the National Guard with live ammunition to disperse un-armed people protesting the next day about something.
The rally that day was not violent, until armed soldiers, with gasmasks and bayonets mounted, formed ranks and marched towards the protesters, firing teargas in front of them.





