You know, whenever a kid gets accidentally shot, I think of all the other 359x359 directions the bullet could have gone and wonder how many millions of stray shots are flying around.
I would assume he's referencing the number of celebratory gunfire incidents. There are a lot of holes in roofs, cars, and every now and again people from people shooting guns in the air for celebration. There is a non-zero chance that one of those bullets will have enough power to do serious bodily harm. Scary as hell bc it can be some idiot within 3 miles putting lives at risk