text: Immediately following this event, Glenn Frank pleaded the mob of students that had caused the event to disperse.
full_question: Immediately following this event, Glenn Frank pleaded the mob of students that had caused the event to disperse. One photograph of this event shows Mary Ann Vecchio screaming in terror over the dead body of Jeffrey Miller. In the aftermath of this event, 4 people were killed, 1 person paralyzed, and 8 others injured. For 10 points, name this event during the Vietnam war in which the Ohio National Guard fired on a group of students protesting the Vietnam war.
first_sentence: Immediately following this event, Glenn Frank pleaded the mob of students that had caused the event to disperse.