I understand having an air tight case. But being charged and being arrested are two different things. You are arrested on suspicion of, you are charged with the evidence you speak of.
All that being said, when a man is in cuffs, it is the responsibility of the officer to ensure the mans health. That simply was not done, even when an off duty first responder called for a pulse check.
In this case the video has more than enough to book this officer with suspicion of. You and I would not be walking free right now, and that is upsetting.
I agree with all your comments. But there is some reason why they have not charged anyone yet. I don’t know why that is. I do expect they will get charged at some point.
You and I don't wear magic blue suits.