If someone has a weapon pointed at another person (armed robbery) with their finger on the trigger and you decide to draw and shoot a well placed shot, Will the sudden noise or shock of being shot make them pull their trigger?

I apologize if this has been asked before, but I can’t find any information online. I run through infinite self-defense scenarios in my head and this is a pretty common one. via /r/CCW https://ift.tt/2uxf4uS