Mark Sloan , owner of King Kase Co., and his son, Adam Sloan, shop foreman, work out of a shop at 1306 E. Bolivar Ave., St. Francis, King Kase, which builds storage cases for musicians such as Eric Clapton and Garth Brooks, is moving next month to a newer building nearby. Mark Sloan , owner of King Kase Co., and his son, Adam Sloan, look at the company's airport transportation approved case in their shop in St. Francis.