IOWA CITY, Iowa (AP) — The FBI says a right-wing conspiracy theorist from Iowa was among the first to break into the U.S. Capitol during last week’s deadly pro-Trump insurrection in which he chased and menaced a Black police officer. Douglas A. Jensen surrendered to police in his hometown of Des Moines on Friday, two days after the Jan. 6 rampage in Washington, D.C., that left five people dead and disrupted U.S. democracy.

FILE – In this Jan. 6, 2021, file photo, Trump supporters gesture to U.S. Capitol Police in the hallway outside of the Senate chamber at the Capitol in Washington. Doug Jensen, an Iowa man at center, was jailed early Saturday, Jan. 9, 2021 on federal charges, including trespassing and disorderly conduct counts, for his alleged role in the Capitol riot. Jensen, 41, of Des Moines, was being held without bond at the Polk County Jail and county sheriff’s Sgt. Ryan Evans said he didn’t know if Jensen had an attorney. (AP Photo/Manuel Balce Ceneta, File)

Investigators say Jensen told them he positioned himself to be among the leaders of the Capitol siege because he was wearing a T-shirt promoting QAnon, the apocalyptic conspiracy theory that he follows.