He was.
https://twitter.com/KaMac76/status/1346965541915930625
Here is a running list of known people to have been at the riots today.
https://forward.com/news/461612/a-gu...d-the-capitol/
Including people that were wearing "Camp Auschwitz" hoodies.
Brien James - Skinhead, leader of the Proudboys and former KKK of Indiana, almost killed a guy for not giving a "Seig Heil" salute.
Proud Boys - Of course, they were there, probably in tow with Roger Stone.
Baked Alaska - was literally live streaming from a senator's office, hope he enjoys prison.
Nationalist Socialist Club - believe the Jews are working to exterminated the white race, holy shit.
QAnon - Of course a myriad of Qtards were there. Including their "Q Shaman".
Kekistan people - Think these people are basically the same as QAnon since I think both were started on 4chan.
And yes Matthew Heimbach was there. But the tweet that is listed was deleted.