If that’s him, looks like he photo shopped himself in a jail cell.
It looks photoshopped to me. More of his foreshadowing that was evident in his other videos.
What's weird is I found the original source to be on Oriental language news site. Scroll to about the fifth photo down to see it.
It looks more like the output of one of those auto-background splicing algorithms. Note the artifacts around his hair.
Quick way to make a video - let zoom or some other video call service run its background substitution code and then grab the screen with the typical streaming service. Instant background without bothering with a real green screen setup.