Provided by Carrie MaKennaRod Greiner Rodney Earl Greiner, an entrepreneur, financial planner, philanthropist and owner of Denver’s historic Zang Mansion, died Oct. 5. He was 86. Greiner turned a career in life insurance into a successful run in financial planning in the 1970s and the formation of the American Zang Investment Council, headquartered in the 37-room Zang Mansion, at East Seventh Avenue and Clarkson Street. A longtime Kiwanis Club member and Rotarian, Greiner was a world traveler who hosted refugee families and exchange students from around the world.