Anti-gun violence advocate and Marjory Stoneman Douglas High School shooting survivor Emma Gonzales (C) is comforted at the "End of School Year Peace March and Rally" in Chicago on June 15, 2018. A boisterous Chicago rally and march kicked off a national gun-reform tour on Friday by students from Parkland, Florida, site of one of the worst US school shootings.
The students-turned-activists have become powerful national voices with their "March For Our Lives" campaign pushing for reforms of gun laws, following the February 14 mass shooting at Marjory Stoneman Douglas High School, which killed 17 students and school staff. (Photo by JIM YOUNG / AFP)