HomeLocalLeft-wing activist seen at Capitol wore gas mask, said he had knife during riot: fedsLeft-wing activist seen at Capitol wore gas mask, said he had knife during riot: fedsFri, January 15, 2021SHARE NOW The self-described left-wing activist recently arrested for allegedly taking part in the storming of the U.S. Capitol — later claiming he was there to “document” it — allegedly wore a gas mask and had a knife at the time of the siege, court papers show.