David Koch, billionaire conservative activist and donor, dead at 79 - 2019-08-23

Billionaire industrialist David H. Koch, who with his older brother Charles transformed American politics by pouring their riches into conservative causes, has died at age 79.
"It is with a heavy heart that I now must inform you of David's death," Charles Koch announced Friday.
David Koch, who lived in New York City, was the Libertarian Party's vice-presidential candidate in 1980. He was a generous donor to conservative political causes, as well as educational, medical and cultural groups.
Wikipedia cite:
{{cite news | title = David Koch, billionaire conservative activist and donor, dead at 79 | url = https://www.cbc.ca/news/business/david-koch-obituary-1.5257303 | work = Associated Press | publisher = CBC News | date = August 23, 2019 | accessdate = August 24, 2019 }}