US billionaire and one of the world’s richest people, David Koch has died

David Koch, one of the world’s richest people and American billionaire has died at the age of 79.

Late Koch and his brother, Charles, co-owned Koch Industries, a Nebraska-based energy and chemical company, since 1983. David stepped down from running the Koch organization last year due to declining health.

The Koch brothers helped to build a massive conservative network of donors for organizations that work to mobilize voters and sway elected officials in support of libertarian-leaning economic policies.