This phenomena of 15 injured, 1 dead, and 6 shooters...when you hear that reported...almost always being blacks is called the "leaded law". https://vdare.com/articles/the-fulford-file-the-leaded-law-and-mass-shootings-poor-black-marksmanship-is-saving-lives

I myself think it's partially the fact that 1) they are using FMJ bullets and 2) better medical care and then 3) shitty aim