(Francisco Kjolseth | The Salt Lake Tribune) West High School 7th grader Sadie Nelson-Stippich, 12, holds a sign that asks, “Am I next,” after students walked out of classes in Salt Lake City on March 14. Students in Utah and around the country planned the large-scale coordinated demonstrations to protest gun violence and memorialize victims of last month’s mass shooting at Marjory Stoneman Douglas High School in Parkland, Fla.