Czech billionaire Petr Kellner was one of five people killed when their chopper crashed near a glacier in Alaska during a skiing trip on Saturday.
원문출처 : https://www.cnn.com/2021/03/29/business/petr-kellner-helicopter-crash/index.html
원문출처 : https://www.cnn.com/2021/03/29/business/petr-kellner-helicopter-crash/index.html