Karl Zimmermann's journey up to the roof of U.S. Bank Stadium started when he was 14 in the trees near Minnehaha Park, right before he was arrested for the first time.
Zimmermann, who is now 32 and is sometimes called Karl Mayo, a shorter version of his name, was at the park's Camp Coldwater in December 1998 protesting the rerouting of Hwy. 55 over what they said was sacred Native American land. Some 600 law enforcement officers removed activists from the encampment.
As he was led into the police van, his hands bound behind his back, Zimmermann looked past the police tape to see his dad proudly raising a clenched first in solidarity. Dad is Dean Zimmermann, who a couple of years after that incident was elected to the Minneapolis City Council and was once dean of the city's Green Party. The FBI subsequently raided his home and he was convicted of accepting money to support a developer's work in his poor inner city ward.
Karl Zimmermann grew up seeing his family fighting for the rights of American Indians and for environmental protections. When his dad brought him to his first protest over the reroute of Hwy. 55, he felt at home. "They were activists that really had a passion about what they were doing and had a conscience about the world," he said this week. "That's something I wanted to be part of."
Last Sunday he emerged from the protest pack in dramatic fashion during the second quarter of the Vikings' final regular-season game at U.S. Bank Stadium.
As thousands of fans watched, Zimmermann and Sen Holiday, 26, climbed a ladder to a catwalk from which they used carabiners and nylon ropes they'd sneaked into the stadium under their winter coats to rappel down and fly a massive banner urging U.S. Bank to divest from the Dakota Access oil pipeline.
They hung some 100 feet high above the seats until the game was over then easily pulled themselves to the awaiting police on the catwalk. Both were arrested and spent the night in jail along with Carolyn Feldman, who supported the action and carried gear. The city attorney's office is investigating and has yet to file formal charges.
Construction of the pipeline has been on hold for several weeks, the result of a yearlong battle between the petroleum industry and a coalition of Indian tribes and environmentalists. Zimmermann says the pipeline dispute is not over though, and the activism is larger than a single pipeline.