That's what it looked like to me. Both his hands went somewhere, then his left comes back into the frame after the shot and then it all dissolves.
I believe the cop will state that he became suspicious that the suspect had stolen the car or was transporting contraband when the suspect refused several requests for license and registration. The cop requested the driver to get out and the driver made a sudden move, possibly to start the car but possibly to grab a gun or to smash the door open into the cop. That doesn't mean the cop is not guilty, just that the video doesn't seem very clear on anything other than the events spiraled out of control within the space of three seconds.
I take it back. The YouTube video (https://www.youtube.com/watch?v=hxeURRTriYo) is way more clear. The cop will still have to claim some kind of provocation as a defense, but there is nothing in the video that I can see that would justify the shooting.
The guy in the car moves his hand to the shifter as the action starts.
I split my time between a stick shift and and automatic transmission, I sometimes reflexively move my hand to the shifter without thinking about it when I start or stop the auto. That could be deadly.