This is perhaps the least convincing part of the explanation, since it would’ve required some very deft timing from Jacqueline, but mysteries often work in a heightened version of reality. This is the true version of events, though, so it seems that for a brief moment, Jacqueline got to be like an action hero, making a very precise shot and quickly fleeing. Again, because Poirot is such a brilliant detective, Christie must create equally skilled villains who attempt to thwart him.