The best prevention of student-instigated violence on campus is an educated, well-trained and caring school community in which everyone understands what to do when they see a weapon on campus and why it might save lives to act.

CNN: How to deal with guns in school

It could not be ascertained if Fenton was caring for Holmes under the threat-assessment program or under routine counseling she provided to students on campus.

MSN: Colorado shooting suspect was under psychiatrist's care