can i ask you about the 1970s?

Have you ever heard of the Kent State Shooting? Basically in 1970, The Governor of Ohio sent to Ohio National Guard to end anti war student protests over the expansion of the vietname war into Cambodia which were taking place at Kent State University due to fears that a student strike would lead to violent revolutionaries taking control of the city of Kent and by the 4th day of protests which was may 4th, the protests and tensions had escalated to such a degree that the university and town both decided to shut down the student protests, but when the protests happened anyways the National Guard fired tear gas from a grenade launcher into the crowd and when that didn’t dispell the protests, the national guard began to advance on the protestors leading to 10 to 50 of the protestors throwing rocks at the national guard leading to more throwing of tear gas at the crowd. Later due to unknown causes that lead up to it, at least 29 of the 77 the national guard members present shot their 66 rounds into both the protestors and students not involved in the protests who were passing by, injuring 9 students and killing 4.