Yep . . . just as I thought. Your source uses ages 0-19 as "children and adolescents." Guess what happens when you lump in those extra two years of 18-year-olds and 19-year-olds, who are legal adults?

You also lump in a disproportionate amount of street gang-related shootings, which have different causes and different solutions, and make it look like suburban teens are uniquely at risk from firearms . . . when they're not. The vast majority of firearm homicides in this country are suicides, and the next-most involve street gangs and the drug trade, and involve young men with criminal records killing other young men with criminal records using illegally-obtained pistols.