OK, here is a Cultural Literacy worksheet on the incident at Kent State University on 4 May 1970. This is a half-page worksheet with a reading of four sentences (the final sentence is a complicated compound that might benefit, particularly for struggling or emergent readers, from simplification) and three comprehension questions.
This document seems a bit crowded to me, and may well cause struggling students some problems. It might be better as a full-page worksheet; and depending how deeply your class is studying this event (if at all), a closer analysis may be de rigueur.
Then again, are we teaching the concepts of resistance and civil strife in our social studies classes? If not, this document is surely superfluous.
If you find typos in this document, I would appreciate a notification. And, as always, if you find this material useful in your practice, I would be grateful to hear what you think of it. I seek your peer review.