Active shooting incidents are rising. The average number of such shooting attacks increased from about one every two months to more than one a month, or 16.4 annually, from 2007 to 2013, according to a study by the FBI and Texas State University. The FBI defines an “active shooter event” as “individuals actively engaged in killing or attempting to kill people in populated areas (excluding shootings related to gang or drug violence.)” The toll thus far 160 shootings nationwide