Those are federal agents and that's what you get when you destroy federal property and attack federal officers they aren't like the local police...you start throwing $h!t at them or hit em with a hammer you go to prison.
Screw Antifa they just kept pushing the envelope, they made their bed now they can lay in it... Behind bars lol
Just FYI throwing things/assaulting people and destroying other people's property is not peaceful protesting it is infact criminal behavior and is not protected by the first amendment.