To promote school safety across K-12 settings, one preventative approach to school violence is school-based threat assessment. The current study utilizes a systematic review of empirical threat assessment investigations to inform evidence-based practices for school threat assessment. Twenty-three articles met inclusion criteria for the review. The…

One of the few recurring characteristics in school shooters' stories is their expression of existential concerns. Many discuss their hatred of the world and existential loneliness in their manifestos, suicide letters, or social media updates. These expressions--called leaking--are made during the planning period preceding their deed. They are not…