Czech billionaire Kellner killed in Alaska helicopter crash

Petr Kellner, the Czech Republic's richest man and founder of investment group PPF, was killed in a helicopter crash on a skiing trip in Alaska. [media type="image" id="907117" layout="mugshot" height="400" position="right" caption="1"][/media] Kellner, 56, was among the five, including the pilot, killed on Saturday in the crash near Knik Glacier northeast of Anchorage, Alaska