1 Daniel C. Semenza is with the New Jersey Gun Violence Research Center, Rutgers University, Piscataway, NJ. Therese S. Richmond is with the School of Nursing, University of Pennsylvania, Philadelphia. Sonali Rajan is with the Department of Health Studies and Applied Educational Psychology, Teachers College, Columbia University, New York, NY. Marian E. Betz is with the Department of Emergency Medicine, School of Medicine, University of Colorado School of Medicine, Aurora. Charles Branas is with the Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY. Shani A. L. Buggs is with the Centers for Violence Prevention, Department of Emergency Medicine, University of California Davis School of Medicine, Sacramento. Stephen Hargarten is with the Department of Emergency Medicine, Medical College of Wisconsin, Milwaukee. Joseph Richardson is with the Department of African American Studies, University of Maryland, College Park. Frederick P. Rivara is with the Harborview Injury Prevention and Research Center, University of Washington, Seattle. Ali Rowhani-Rahbar is with the Department of Epidemiology, School of Public Health, University of Washington, Seattle. Tanya L. Sharpe is with the Factor-Inwentash Faculty of Social Work, University of Toronto, Toronto, Ontario, Canada. Daniel W. Webster is with the Center for Gun Violence Solutions, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD. Jesenia M. Pizarro is with the School of Criminology and Criminal Justice, Arizona State University, Phoenix.