New Yorker journalist Jane Mayer reported the death of an entrepreneur, billionaire and one of the richest people in the world, David Koch.
In his twitter Mayer wrote that she received information from sources close to the family of a 79-year-old billionaire.
David Koch was born on May 3, 1940. His career began at his father's company, Koch Industries, where David worked with his brothers. After the death of his father, the brothers decided to invest in various industries: oil refining, fertilizer, polymer, fiber and forestry.
Koch actively participated in political life, he financed various actions.
In 1980 the entrepreneur ran for the vice-president of the Libertarian Party.
Last June, experts estimated his fortune at $ 51 billion, and in August this year the condition of the Koch brothers was $ 124.5 billion. They took third place in the ranking of the richest families in the world.