In 2002, the U.S. Secret Service completed the Safe School Initiative, a study of school shootings and other school-based attacks that was conducted in collaboration with the U.S. Department of Education. The study examined school shootings in the United States as far back as 1974, through the end of the school year in 2000, analyzing a total of 37 incidents involving 41 student attackers. The study involved extensive review of police records, school records, court documents, and other source materials, and included interviews with 10 school shooters. The focus of the study was developing information about the school shooters's pre-attack behaviors and communications. The goal was to identify information about a school shooting that maybe identifiable or noticeable before the shooting occurs, to help inform efforts to prevent school-based attacks. http://www.secretservice.gov/ntac_ssi.shtml

http://www.secretservice.gov/ntac_ssi.shtml