10 Deadliest U.S. School and Campus Shootings (1999–2025)

Over the past 25 years, the United States has faced numerous tragic school and campus shootings, leaving hundreds dead and many more injured. The deadliest incidents include Virginia Tech, Sandy Hook, and Robb Elementary, where shooters acted out of personal grievances, mental illness, revenge, or ideological motives. The victims range from elementary students to college students and educators, highlighting the devastating human toll of gun violence in educational settings. Each case underscores the urgent need for preventive measures, mental health support, and stricter gun safety policies.