The university where 13 student protesters were killed or injured during the Vietnam War era worries that other schools have learned nothing from its history.

54 years ago, four student were shot and killed by Ohio National Guard troops while protesting against the Vietnam War and nine others were injured. Organizers say today's pro-Palestinian protest is a way of continuing the legacy of those students.

On May 4, 1970, the Ohio National Guard fired on Kent State students, killing four and wounding nine. A former student who now teaches there reflects on that day and offers lessons for protesters now.

As Kent State prepares to commemorate the shooting of anti-Vietnam War protesters, universities struggle with responding to pro-Palestinian agitators.

The students were upset. They wanted to be heard. They were emphatic that the university listen to their demands. They were opposed to a war half a world away and wanted to do something. And then people died.

Fifty-four years ago, four students were shot by the National Guard during an anti-Vietnam War protest at Kent State university in Ohio – a tragedy that still resonates today.

Kent State University is marking an anniversary of the shootings that killed four students and wounded nine others on May 4, 1970.

On May 4, 1970, in just 13 seconds, four students at Kent State University -- Sandra Scheuer, and William Schroeder -- were fatally shot when National Guardsmen opened fire. Nine others were wounded on the small campus.