David Koch, billionaire conservative activist and philanthropist, dead at 79
David Koch - the billionaire co-owner of Koch Industries in 2011 - Photo: Getty Images David Koch, billionaire conservative activist and philanthropist, has died. He was 79. “It is with a heavy heart that I announce the passing of my brother David," Charles Koch said in a statement Friday. "Anyone who worked with David surely experienced his giant personality and passion for life." David and Charles, the chairman and chief executive officer of Koch Industries, co-owned the Kansas-based energy and chemical company, since 1983. David stepped down from running the Koch organization last year due to declining health. Read more at 'David Koch Dead' Read the full article