In the 2008–09 school year, an estimated 55.6 million students were enrolled in prekindergarten through grade 12 (Snyder and Dillow 2010). Preliminary data show that among youth ages 5–18, there were 38 school-associated violent deaths1 from July 1, 2008, through June 30, 2009 (Indicator 1). In 2008, among students ages 12–18, there were about 1.2 million victims of nonfatal crimes at school,2 including 619,000 thefts3 and 743,100 violent crimes4 (simple assault and serious violent crime5) (Indicator 2). In 2009, 8 percent of students reported being threatened or injured with a weapon, such as a gun, knife, or club, on school property (Indicator 4).