Prevention of homicidal violence in schools in Germany: the Berlin Leaking Project and the Networks Against School Shootings Project (NETWASS).

Since 1999, Germany has experienced at least twelve serious cases of targeted school violence. This article describes two projects designed to fill the gap between universal prevention and emergency response in preventing severe forms of school violence in Germany. The Berlin Leaking Project examined the viability of preventive efforts based on early identification of leaking behavior that often precedes targeted school attacks.