I would sue. Plain and simple.
The video shows him saying hello and asking a question.
He could have kept walking if he didn’ want to respond.
He had no right to grab for the camera.
He had no right to grab the young man’s wrist.
He had no right to grab him up around the neck.
He had NO RIGHT to put his hands on that young man period.
The young man continually called him “sir.” (a stretch)
The young mand asked him to please let go of his wrist.
The young man said: “Whoa or the cameraman said that when the perp grabbed him in the neck area.”
It’s all on film. I would sue him for assault and follow through.
This supposedly representative of the people acted like a street thug. This young man has a case!!!
You are right. It is a criminal battery by any definition.