...and what kind you see in one and not see in the other?
I think the key here, in terms of the difference between the two, is the zoom. The prosecution is resting much of their case on the provocation. Because if he provokes, he needs to clear a much higher bar for self defense.
Him being there with a gun was not deemed illegal and thus not a provocation. They therefore need him to have raised the gun and pointed it at people. They zoomed in to a single frame (a fraction of a second!) which they claim proves this.
Now, the prosecution has repeatedly claimed they are not relying on this evidence. But in the argument over the jury instructions when the judge agreed to include the provocation instruction, it was based on showing him this high res footage and saying that's where the picture comes from.
That photo and the high resolution video were not provided to the defense and this should not have been entered into evidence. That changes the whole case and changes the jury instruction to omit provocation, making a self defense claim almost certain.
Of course, if the judge thinks they submitted the low res file on purpose, that is grounds for a mistrial with prejudice. (even without intent, it still might be, as they were warned about using the image by the judge)
As for what you see in the actual footage. I think if the defense sees the high res footage KR wouldn't have said a word about grabbing the gun. I think it's quite clear that that didn't happen. But, I also see that each side will look at the exact same footage and have diametrically oppossed views.
1) There is no provocation from KR, he tries to run away, he even raises his gun to scare JR off as he runs, and only fires when he gets stuck in between cars and JR is virtually on top of him. He is clearly in imminent danger of great bodily harm, especially considering the violent nature of the atmosphere that night. (this may even be enough even if he did provoke, because he did retreat)
The video makes it clear he should not be found guilty.
2) The video is clear, he didn't grab the gun, he wasn't lunging at him, he was an unarmed guy running at KR. Sure, that's no picnic, but no reasonable person would fire 4 shots at almost point blank range for being chased by an unarmed guy.
He is guilty.
I think that's text book reasonable doubt.