President Donald Trump called for Chicago Mayor Brandon Johnson to be imprisoned Wednesday morning amid his administration’s deployment of National Guard members to Illinois’ largest city.“Chicago Mayor should be in jail for failing to protect Ice Officers!” Trump wrote on his social media platform ...
Some commenters in the thread you linked are claiming that the videographer was working for ICE for a promotional video.
You can see in the video that he climbs out of the same red van as the ICE thugs, so that seems like a solid bet to me