More progressive campuses use "Active Harmer" because it may be a crazy person with a machete instead of a gun. https://www.colorado.edu/today/2016/10/06/incid

More progressive campuses use "Active Harmer" because it may be a crazy person with a machete instead of a gun. https://www.colorado.edu/today/2016/10/06/incident-terminology-what-active-harmer https://www.colorado.edu/today/2016/10/06/incident-terminolo... And in that case referred to in that story it was a crazy person with a machete.