The man whose bizarre horned headdress and painted face captured widespread mainstream and social media attention during the Capitol building takeover Wednesday has been arrested.

Arizona resident Jacob Anthony Chansley, 33 — better known through his social media alias as Jake Angeli — was arrested Saturday, officials said. Read the Justice Department’s full announcement below.

Chansley “was identified as the man seen in media coverage who entered the Capitol building dressed in horns, a bearskin headdress, red, white and blue face paint, shirtless, and tan pants,” the Justice Department said in its statement. “This individual carried a spear, approximately 6 feet in length, with an American flag tied just below the blade.

No information was immediately available on what fines or imprisonment Chansley may face.

Footage from the chaotic Capitol scene showed Chansley on the Senate dais. He was charged with knowingly entering or remaining in any restricted building or grounds without lawful authority,...