Introduction The homicides of four University of Idaho students in Moscow, Idaho, shook the public not only because of their brutality, but because they reignited a recurring, and often misunderstood, question after targeted violence:  Could this have been prevented?  That question tends to trigger a search for certainty, who “should have known,” what warning sign “proved” intent, and why no one “predicted” the outcome. Behavioral Threat Assessment and Management (BTAM) offers a different,...

Introduction Taylor Swift is a prime example of modern celebrity fandom's complexity. Her extensive international influence, pervasive media presence, and highly interactive fan community offer valuable insights into the dynamics of modern fan engagement at an unparalleled scale. As distinctions between admiration and problematic behavior become increasingly ambiguous, it is important to critically assess the boundaries that separate enthusiastic participation from actions that may constitute...