After Another Mass Shooting, Questions Loom About the Role of Parents. Highland Park Parade Shooting (July 4, 2022), Mass Shootings, Parenting, Highland Park (Ill), Crimo, Robert E III, Reinking, Travis (1989- ), Crumbley, Ethan, Lanza, Adam, Ramos, Salvador (d 2022), Gendron, Payton S, Rodger, Elliot O