The Averting Targeted School Violence: A Case Study” examines a school attack plot that was prevented by bystander reporting. This case study details the behavioral background and planning of two female high school students who plotted to perpetrate an attack at their high school. The findings from both case studies indicate that targeted violence is preventable. This presentation will emphasize the utility of a behavioral threat assessment approach to help communities identify and intervene with individuals exhibiting concerning or threatening behaviors.