Columbine High School massacre officers using this tactic are trained to move toward the sound of gunfire and neutralize the shooter as quickly as possible. Their goal is to stop the shooter at all costs; they are to walk past wounded victims, as the aim is to prevent the shooter from killing or wounding more. Dave Cullen has stated: "The active protocol has proved successful at numerous shootings...At Virginia Tech alone, it probably saved dozens of lives." After the massacre, many survivors and relatives of deceased victims filed lawsuits. Under Colorado state law at the time, the maximum a family could receive in a
Columbine High School massacre wrongful death suit against the Harrises and Klebolds. In 2000, youth advocate Melissa Helmbrecht organized a remembrance event in Denver featuring two surviving students, called "A Call to Hope." The library where most of the massacre took place was removed and replaced with an atrium. In 2001, a new library, the HOPE memorial library, was built next to the west entrance. On February 26, 2004, thousands of pieces of evidence from the massacre were put on display at the Jeffco fairgrounds in Golden. A permanent memorial "to honor and remember the victims of the April 20, 1999 shootings at Columbine