Attempts to place the shootings at Columbine High School in Littleton, Colorado, in a historical perspective. Describes the shootings in Littleton and the high school shootings since 1996. Interprets the possible reasons for the Columbine shootings, such as the role of the high school, access to guns, and violence in the mass media. (CMK)

Studies firearms behaviors among 835 criminally active male, mostly urban, youth and 1,653 male and female innercity high school students in 4 states. It is evident that the large urban environment encourages youth to be armed and that enforcement activities alone will not be enough to alleviate the problem. (SLD)