Participants listen to the ringing of the bell, during the opening ceremony of the 9/11 Memorial Ruck March, at the Utah State University Botanical Gardens in Kaysville, Utah, Sept. 11, 2019. The event was co-sponsored by Hill Air Force Base first responders and fire and police departments from Kaysville and Layton, to honor and remember the fallen from the events of Sept. 11, 2001. (U.S. Air Force photo by Todd Cromar)