Approximately three million American children witness gun violence every year.

Everytown Research analysis of Finkelhor et al., “Prevalence of Childhood Exposure to Violence, Crime, and Abuse: Results From the National Survey of Children’s Exposure to Violence,” JAMA Pediatrics 169, no. 8 (2015): 746–54, https://doi.org/10.1001/jamapediatrics.2015.0676.