Another day, another massacre. By now, the sequence of events is all too familiar. First, the initial reports of a mass shooting in some locale where people are accustomed to feeling safe. A high school (the latest one in Parkland, Florida), a church, an outdoor concert, a movie theater, a dance club, an elementary school, a mall, a Christmas party. Then the horror stories—eyewitness reports, audio and video from phones. Then the number of victims. A brief information blackout, and then the facts about the man (always a man) who rained terror and ended lives with an arsenal of guns.