On May 4, 1970, the Ohio National Guard gunned down unarmed college students protesting the Vietnam War at Kent State University. In a deadly barrage of 67 shots, 4 students were killed and 9 shot and wounded. It was the day America turned guns on its own children - a shocking event burned into our national memory. A few days prior, 10-year-old Derf Backderf saw those same Guardsmen patrolling his nearby hometown, sent in by the governor to crush...