- 53 million students attend public or private school each in the United States (Loyola University, 2012)
- The National School Boards Association (1993) estimated that 135,000 American children carry guns to school each day.
- The Department of Education (1999) reported that 3,930 students in public K-12 schools were expelled for bringing a firearm to school in school year 1997-98.
- From 1999-2006, 116 students were killed in 109 separate incidents—an average of 16.5 student homicides each year (CDC 2008). Centers for Disease Control and Prevention. School-associated student homicides—United States, 1992–2006. MMWR 2008; 57(02):33–6.
- Rates of school-associated student homicides decreased between 1992 and 2006. However, they remained relatively stable in recent years. Rates were significantly higher for males, students in secondary schools, and students in central cities (CDC 2008). Centers for Disease Control and Prevention. School-associated student homicides—United States, 1992–2006. MMWR 2008; 57(02):33–6.
- Likelihood of homicide or suicide of student in school 1 in 1 million (Secret Service, 2002) [Odds of being struck by lightning are 1 in 775,000] http://www.lightningsafety.noaa.gov/medical.htm
- Likelihood of a school shooting at any school is once every 13,870 years. Dr. Dewey Cornell, in his book School Violence: Fears Versus Facts (2006)