

Doesn’t work when the target is wearing discreet body armor, and the impact has to be instantly lethal. Trump isn’t, going to bleed out (they pre-deploy emergency services to large events) Even a lung hit isn’t going to kill fast enough. So center mass become “pretty much heart only”.
Shooting for the head and neck is pretty much the only option in that scenario.
Crooks did keep shooting… He killed one person and hit a few others.