It's kinda hard to determine who is Antifa or not. You just have to watch their actions. Even then, were there some people who were NOT part of that Antifa group who got suckered into going inside the capital building? I think yes. These people deceive to gain power. The lower level "useful idiots" think they are going to gain more power if they keep using the tactics. I've met so many people at a lot of the local Trump rallies that look like antifa, they weren't. Hell, I look like a crazy nut. You can tell when you talk to people though how far they have gone along with their beliefs. You can see the passion or lack there of when talking to someone. Also if they start breaking crap and lighting things on fire.