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(Chris Detrick | The Salt Lake Tribune) Participants march from West High School to the state Capitol during the March for... (Lillian Reed | The Salt Lake Tribune) 14-year-olds Elizabeth Young (left) and Clara Fowler (right) pose with their signs. Bo... (Chris Detrick | The Salt Lake Tribune) Participants hold signs during the March For Our Lives rally in Salt Lake City Satur... (Chris Detrick | The Salt Lake Tribune) Participants march from West High School to the state Capitol during the March for... (Chris Detrick | The Salt Lake Tribune) Participants hold signs during the March For Our Lives rally in Salt Lake City Satur... (Chris Detrick | The Salt Lake Tribune) Participants hold signs during the March For Our Lives rally in Salt Lake City Satur... (Chris Detrick | The Salt Lake Tribune) People wave to participants as they march from West High School to the state Capit... (Chris Detrick | The Salt Lake Tribune) Participants march from West High School to the state Capitol during the March for... (Lillian Reed | The Salt Lake Tribune) Southern Utah University student Matthew Davis, 23, kneels while pro-gun protestors pa... (Chris Detrick | The Salt Lake Tribune) (Lillian Reed | The Salt Lake Tribune) BYU students Emma Barton (left) and Summer Corry (right) pose for a photo with signs t... (Chris Detrick | The Salt Lake Tribune) Participants listen during the March for Our Lives SLC rally at the state Capitol ... (Chris Detrick | The Salt Lake Tribune) Danielle Creer 14, right, and Grace Meservy, 15, listen during the March for Our L... (Chris Detrick | The Salt Lake Tribune) Participants listen during the March for Our Lives SLC rally at the state Capitol Sa... (Chris Detrick | The Salt Lake Tribune) Participants listen during the March for Our Lives SLC rally at the state Capitol Sa... (Chris Detrick | The Salt Lake Tribune) Participants listen during the March for Our Lives SLC rally at the state Capitol Sa... (Chris Detrick | The Salt Lake Tribune) Participants listen during the March for Our Lives SLC rally at the state Capitol Sa... (Chris Detrick | The Salt Lake Tribune) Participants cheer during the March for Our Lives SLC rally at the state Capitol S... (Chris Detrick | The Salt Lake Tribune) Participants hold up the peace sign as they listen to John Lennon's song 'Imagine'... (Chris Detrick | The Salt Lake Tribune) Participants hold up the peace sign as they listen to John Lennon's song 'Imagine'... (Chris Detrick | The Salt Lake Tribune) Participants listen during the March for Our Lives SLC rally at the state Capitol ... (Chris Detrick | The Salt Lake Tribune) Participants listen during the March for Our Lives SLC rally at the state Capitol Sa... (Chris Detrick | The Salt Lake Tribune) Participants listen during the March for Our Lives SLC rally at the state Capitol ... (Chris Detrick | The Salt Lake Tribune) Participants listen during the March for Our Lives SLC rally at the state Capitol ... (Chris Detrick | The Salt Lake Tribune) Participants listen during the March for Our Lives SLC rally at the state Capitol ... (Chris Detrick | The Salt Lake Tribune) Ermiya Fanaeian and other participants march from West High School to the state Ca... (Chris Detrick | The Salt Lake Tribune) Participants march from West High School to the state Capitol during the March for... (Chris Detrick | The Salt Lake Tribune) Participants listen during the March for Our Lives SLC rally at the state Capitol ... (Chris Detrick | The Salt Lake Tribune) Participants listen during the March for Our Lives SLC rally at the state Capitol ... (Chris Detrick | The Salt Lake Tribune) Participants march from West High School to the state Capitol during the March for... (Chris Detrick | The Salt Lake Tribune) Participants march from West High School to the state Capitol during the March for... (Chris Detrick | The Salt Lake Tribune) Participants march from West High School to the state Capitol during the March for... (Chris Detrick | The Salt Lake Tribune) Participants listen during the March for Our Lives SLC rally at the state Capitol ... (Chris Detrick | The Salt Lake Tribune) Participants listen during the March for Our Lives SLC rally at the state Capitol ... (Chris Detrick | The Salt Lake Tribune) Participants march from West High School to the state Capitol during the March for... Scott Sommerdorf | The Salt Lake Tribune Students chant on the steps of the State Capitol near the end of their rally for tho... Scott Sommerdorf | The Salt Lake Tribune A man climbed op on a concrete abutment to photograph the huge crowd on the south la... Scott Sommerdorf | The Salt Lake Tribune Part of the huge crowd on the south lawn of the Utah State Capitol for the For Our l... Scott Sommerdorf | The Salt Lake Tribune Part of the huge crowd on the south lawn of the Utah State Capitol for the For Our l...