we'll show you the video and i want to warn, you're going to hear a gunshot. >> i say something? >> you have a pistol? >> oh, god! >> oh, my god! >> the uber driver, robert westlake, a licensed armed security guard who hole holds a concealed carry permit. he called 911 and rendered aid to boek who died. the girlfriend was not even in that uber. this was a case of him following the wrong vehicle in the first place, westlake told police came towards me, shouted he's got a pistol and reached for his waistband. that's why the sheriff says it makes it a classic stand your ground case and doesn't plan to charge him. >> wow. >> don't mess with an uber driver.