The picture I am going to post comes from the article linked above:
You can see the wheels changed direction because the driver was trying to turn around in order to drive away. You can also see the shooter, approaching the car from the front (therefore creating that potentially dangerous situation) and then shooting at the car while not being in front of it, not even in a distance to be, say, clipped by the side of it.
How can anyone claim self defence after seeing that is beyond my comprehension.