Neil Cooper, Kent State University professor and director of the School of Peace and Conflict Studies, looks at a display at the May 4 Visitors Center at KSU, Wednesday, May 1, 2024, in Kent, Ohio. Kent State University is marking another solemn anniversary of the National Guard shootings that killed four unarmed students and wounded nine others on May 4, 1970. (AP Photo/Sue Ogrocki)
Todd Diacon, president of Kent State University, is pictured during an interview at the May 4 Visitors Center, Wednesday, May 1, 2024, in Kent, Ohio. Kent State University is marking another solemn anniversary of the National Guard shootings that killed four unarmed students and wounded nine others on May 4, 1970. (AP Photo/Sue Ogrocki)
A man walks past the site where student Jeffrey Miller was killed during protests at Kent State University on May 4, 1970, on Wednesday, May 1, 2024, in Kent, Ohio. The four sites where students died are marked off with pillars. (AP Photo/Sue Ogrocki)
Chic Canfora recounts the events of May 4, 1970, standing at the pagoda where National Guardsmen knelt and shot towards students in the parking lot at rear, during an interview Thursday, May 2, 2024, in Kent, Ohio. (AP Photo/Sue Ogrocki)
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)
Chic Canfora recounts the events of May 4, 1970, during an interview near the site of the shootings, Thursday, May 2, 2024, in Kent, Ohio. (AP Photo/Sue Ogrocki)
Dean Kahler, who was shot an paralyzed at Kent State University on May 4, 1970, holds a photograph he took of a U.S. National Guardsman talking to students during the 1970 anti-war protest, during an interview in his home Thursday, May 2, 2024, in Plain Township, Ohio. (AP Photo/Sue Ogrocki)
FILE - Ohio National Guard soldiers move in on war protestors at Kent State University in Kent, Ohio, May 4, 1970. Four persons were killed and multiple people were wounded when National Guardsmen opened fire. (Akron Beacon Journal via AP, File)
Dean Kahler, who was shot and paralyzed at Kent State University on May 4, 1970, is pictured during an interview in his home Thursday, May 2, 2024, in Plain Township, Ohio. (AP Photo/Sue Ogrocki)
Dean Kahler, who was shot and paralyzed at Kent State University on May 4, 1970, recounts the National Guard aiming their rifles that day, during an interview in his home Thursday, May 2, 2024, in Plain Township, Ohio. (AP Photo/Sue Ogrocki)
Todd Diacon, president of Kent State University, is pictured during an interview at the May 4 Visitors Center, Wednesday, May 1, 2024, in Kent, Ohio. Kent State University is marking another solemn anniversary of the National Guard shootings that killed four unarmed students and wounded nine others on May 4, 1970. (AP Photo/Sue Ogrocki)
Todd Diacon, president of Kent State University, is pictured during an interview at the May 4 Visitors Center, Wednesday, May 1, 2024, in Kent, Ohio. Kent State University is marking another solemn anniversary of the National Guard shootings that killed four unarmed students and wounded nine others on May 4, 1970. (AP Photo/Sue Ogrocki)
Dean Kahler, who was shot and paralyzed at Kent State University on May 4, 1970, recounts wiping tear gas from his eyes that day, during an interview in his home Thursday, May 2, 2024, in Plain Township, Ohio. (AP Photo/Sue Ogrocki)
FILE - A general view shows tear gas and students during an anti-Vietnam war protest at Kent State University in Kent Ohio, May 4, 1970. U.S. National Guardsmen opened fire during the protests killing four students and wounding five. (AP Photo/Larry Stoddard, File)
Dean Kahler, who was shot and paralyzed at Kent State University on May 4, 1970, is pictured during an interview in his home Thursday, May 2, 2024, in Plain Township, Ohio. (AP Photo/Sue Ogrocki)
Todd Diacon, president of Kent State University, is pictured during an interview at the May 4 Visitors Center, Wednesday, May 1, 2024, in Kent, Ohio. Kent State University is marking another solemn anniversary of the National Guard shootings that killed four unarmed students and wounded nine others on May 4, 1970. (AP Photo/Sue Ogrocki)