As Arlow Guthry said, " There is no hypocrisy or discrimination, because we'll get anybody."The students were ordered, time and again, to clear the campus. They refused to do so, and the national Guard moved to get them out of that area. What happened was tragic, but it was those students (and non-students who were a large part of the crowd) fault.
Keep in mind that at least two of the people shot were not students at all, and had absolutely no connection with Kent State. They were outside agitators, who came in to help create a riot. The fact that they got a lot more than then had anticipated is their fault, not the guards.
Stop crying for those idiots.
The FBI used agitators to incite riots so they could bust heads and jail dissidents. It was no different in Canada where the police incited riots all the time. There were crazies on both side of the fence, but there is no excuse for the use of lethal force. Calling war protesters idiots only shows the caliber of your own character.