by Rachel Lynn Aldrich
Posted 8/23/19, 12:21 pm
David H. Koch, the American billionaire known for his staunch support of conservative politics, has died at age 79. He was one of four sons of Fred Koch, who made a fortune by setting up oil refineries around the world in the 1930s. David Koch, a chemical engineer and vice president of Koch Industries, became an active philanthropist after surviving a plane crash in 1991.