What incident involved the National Guard shooting at students in Ohio?

The incident that involved the National Guard shooting at students in Ohio refers to the Kent State Shootings, which occurred on May 4, 1970. During a protest against the United States' invasion of Cambodia during the Vietnam War, students gathered at Kent State University. The protest escalated, and the Ohio National Guard was called to disperse the crowd. Tragically, on that day, Guard members fired into a group of students, killing four and injuring nine others. The event became a pivotal moment in the anti-war movement and sparked national outrage and protests across college campuses throughout the country.

Other incidents mentioned, such as the Columbine High School Shooting, the University of California Protest, and the Detroit Riots, are significant events in their own right but do not involve the National Guard shooting at students in Ohio, thus making them unrelated to the specific question asked. The Kent State incident remains a crucial historical event highlighting the tensions of the era and the impact of government actions on civil rights and freedoms.