A forensic analysis of Terry Strubbe’s audio recordings of this event commissioned by the Plain Dealer disputed that its pivotal “13 seconds” were spontaneous. Long Island native Jeffrey Glenn Miller was honored following this event by New York (20[1])mayor John Lindsay, but angry construction workers marched to City Hall and forced the flag to full-staff during the Hard Hat Riot. In the leadup to this event, someone put up a sign asking, “Why is the (*) ROTC building still standing?” This event took place during a protest against the invasion of Cambodia. Mary Ann Vecchio agonizes over a dead body in an iconic photo of this 1970 event. For 10 points, name this incident where the National Guard killed four anti-war protestors at an Ohio university. ■END■