[@WiseDragonGirl]

In Donny's profile it explicitly states he has an eidetic memory. He can't see everyone at once, but he can memorize their positions with nothing more than a glance and shoot the second target the moment he neutralizes the first. He wouldn't stare after somebody he'd just capped when there are other dangerous targets likely to try and avenge their own. He doesn't even need to see them to shoot them. Keep in mind how Fortune totally called his attack out. As demonstrated with Donny's shooting of Graffiti, he unhesitatingly shoots people who try to call their shots. I just thought that there was no need to make a point on that, given how much emphasis is placed on Donny's pragmatism.

Again, Fortune literally delivered an entire one-liner before throwing his sword.

I was already bending Donny's character quite a bit by not simply lagging behind everyone and then shooting them all in the back without pause, and by not shooting Fortune in the head instead of the arm. The way Donny's attacking now at least gives the others half a chance. If I bent him any more he'd snap in half.