Milwaukee advertising creative, known for work with Brewers and Potawatomi, dies at 60 MILWAUKEE (CBS 58) --- An iconic advertising executive in Milwaukee has died. Rich Kohnke, most recognizably for his work with the Milwaukee Brewers and Potawatomi Casino, died at the age of 60 on Feb. 27. Officials say Kohnke lost his battle with Lewy Body Dementia, the same disease Robin Williams suffered from. In celebration of his life, his family has scheduled a digital tribute on three billboards that will rotate throughout the day in Milwaukee on Monday, March 8. According to officials, Kohnke wa...