If anything, it looked like a poorly applied sleeper hold, which isn’t a choke either.
If it was a sleeper hold, he would have gone under during it.
His hand was clearly still tense during the length of the maneuver, so it did not knock him out.
I believe it was a takedown, because that is definitely what the move achieved, and it was released very shortly thereafter.
I do believe he did die very shortly after being cuffed though.
I no longer believe that he died in the ambulance or at the hospital.
I definitely think that the overall stress of the incident combined with his weight and the weight of the men pinching him between the sidewalk and themselves may have been the cause.
I mean, whatever it was, it took effect quickly.
But I don’t believe that any of those many intended to kill him at anytime. I believe his death was accidental.