Gaige Grosskreutz, 27, filed the lawsuit Thursday in federal court in Milwaukee, just weeks before Rittenhouse’s murder trial is set to begin. It marks the second major legal action against the city and county of Kenosha since the Aug. 25, 2020, riot where Rittenhouse shot three people: Grosskreutz, who lost a chunk of his biceps but survived; Joseph Rosenbaum, 36, and Anthony Huber, 26, who both died.