What event led to the National Guard shooting 4 Kent State University students? A) The US announced that 18 year old's would be drafted into the Vietnam War.

B) The Civil Rights leader, Martin Luther King Jr., was assassinated causing massive civil unrest.

C) It was believed that Communist propaganda was being used to indoctrinate college students across America.

D) President Nixon announced the war in Vietnam would be escalating into Cambodia as students protested for the war to end.