WASHINGTON For some Americans on the far right, Charlie Kirk died a " martyr " and any criticism of the hugely popular conservative activist must be punished. Online vitriol and grassroots persecution have exploded in the wake of the assassination of the 31-year-old who had been an electrifying presence on the U.S. right, with the killing further deepening fraught political divisions in the country. Laura Sosh-Lightsy, assistant dean of students at a university in the southern state of