In this Jan. 4, 2021 booking photo provided by the Ozaukee County Sheriff's Office in Port Washington, Wis., Steven Brandenburg is shown. Brandenburg, a former Wisconsin pharmacist, pleaded guilty Tuesday, Feb. 9 in federal court to charges that he tried to spoil dozens of vials of COVID-19 vaccine. Federal prosecutors charged Brandenburg in late January with two counts of attempting to tamper with consumer products. He pleaded guilty to both counts during a video conference with U.S. District Judge Brett Ludwig in Milwaukee. Ozaukee County Sheriff