He then opens the car door and appears to be reaching for something on the floor.
Don't know if this was justified or not by their training but obviously they can't let him get in the car, with kids, and put them at risk or to use the vehicle as a weapon or retrive a weapon from the vehicle.
I'm sure the last thing any White cop wants to do in this day and age is shoot a black person.
RE: There is a photo that clearly shows a karambit knife in his left hand though I don’t know if it’s been verified.
I saw the photo, it is VERY UNCLEAR what he had in his hand. It could be a karambit, it could be keys...
Hint: it does not end well for the cops.