This book tackles the important question of how we can understand and learn from the school rampage killings that have been prevented. ampampnbspIn the flood of recent accounts and analyses of deadly school rampage killings that plague society and inspire widespread public fear very little attention has been given to the incidents that almost were. ampampnbspBuilding on Madfis previous book The Risk of School Rampage Assessing and Preventing Threats of School Violence 2014 this vital work addresses key gaps in school violence scholarship through the examination of averted school rampage incidents in the United States and advances existing knowledge through groundbreaking insights from the latest research on mass murder violence prevention bystander intervention disciplinary policy and threat assessment in school contexts.