Rules of Engagement
ON AUGUST 1, 1966, perched on top of the 27-story clock tower at the University of Texas at Austin, a former military sniper named Charles Whitman took aim at an unsuspecting campus below. Over the course of an hour and a half, Whitman shot 47 people, killing 17.
AND SO BEGAN the modern age of the mass-casualty shooting. By the beginning of the 21st century, civilian gun violence resulting in high body counts had become so commonplace that special schools were created to offer training to individuals most likely to be in contact with active shooters—from law-enforcement officials and first responders, to regular civilians such as teachers and students.
Last November, Houston-based photographer Spike Johnson spent three days documenting training exercises at an Advanced Law Enforcement Rapid Response (ALERRT) center in San Marcos, Texas, where students learn how to clear rooms, neutralize shooters, treat casualties, and evacuate personnel. For some photographs, Johnson double-exposed his film in-camera to evoke a nonliteral documentation of an event.
Unfortunately, preparing for the unthinkable has not yet yielded many benefits. It has been little over a year since Omar Mateen took a Sig Sauer MCX rifle into a nightclub in Orlando, Florida, and killed 49 people. In the 365 days following that event, there were 397 mass shootings that killed 421 and injured over 1,500.


The FBI doesn’t know whether arming civilians saves lives. “We really don't have data that supports one way or the other about armed civilians,” says Katherine Schweit, FBI Chief in the Violence Prevention Section.