Hollan Holm, left, and his wife, Kate Dittmeier Holm, right, observe a moment of silence with their daughter, Sylvia, 11, during a rally against gun violence in Louisville, Ky., Saturday, June 3, 2023. Raising kids amid school shootings and neighborhood violence is enough to worry any parent. For those, like Hollan Holm who survived a school shooting during the Columbine era, it can be even harder. (AP Photo/David Goldman)