FILE - A memorial stands tall on the Kent State University campus site Sunday, May 3, 2020, where four students, Allison Krause, Jeffrey Miller, Sandra Scheuer and William Schroeder, were killed when Ohio National Guardsmen opened fire May 4, 1970 during a student protest against the escalation of the war in Vietnam. In addition to the four students killed, five were wounded in the 13 seconds it took 28 guardsmen to get off 67 rounds. (AP Photo/Gene J. Puskar, File)