More than once a month in the past year, gunfire has turned deadly, gun control advocates findPolice officers take part in active shooter response training exercise at Fountain middle school in Fountain, Colorado, in June 2017. Photograph: Dougal Brownlie/APA gun is fired on a school campus in America nearly twice a week. Suicide, homicides, a police shooting, attacks on students by other students: more than once a month this past year, gunfire on American school and university campuses has turned deadly, according to a database of school gunfire incidents compiled by advocates.In the latest in a series of brutal shootings …