You are reading WaPo propaganda. Try this.
New light shed on Kent State killings--Shots fired at Guard, declassified files indicate
Previously undisclosed FBI documents suggest that the Kent State antiwar protests were more meticulously planned than originally thought and that one or more gunshots may have been fired
I have no doubt that the riots were planned ala Chicago anf the planners were thrilled with the outcome. I wouldn’t say that exactly what happened is clear. I can only assume that the FBI hid this exculpatory evidence for a reason. I’m not sure, but perhaps to cover up the fact that they had this idiot photographer running around with a .38, and he may have contributed to the situation. Who knows, maybe he thought he would win the Pulitzer if he could get them firing on the crowd. At that time, the FBI was often using shaky assets like that.
The students were swept up in the Peace Movement, and that brought on the concept of a Protest against the War.
The anarchists and communists saw this as a means to an end, and did the meticulous planning to turn the PROTEST into a RIOT.
Those same type of people (anarchists and communists) tried to do the same thing recently at a protest against the sentencing of a black man, in Oakland, CA (IIRC). The police chief was aware the anarchists were there, and of their tactics, and ordered his men not to get suckered into shooting protestors.