In this frame grab made Wednesday Jan. 9, 2013, taken from APTN video provided by Yekaterina Achkasova, as her husband Denis Burakov and another man are seen inside a large plastic ball called a zorb, on Thursday, Jan. 3, 2013, as they roll down a hill before tragedy struck at the winter sports venue at Dombai in the Caucasus Mountains of southern Russia.
What was supposed to be a thrilling ride down a ski slope inside a giant inflatable ball has ended in tragedy when the zorb veered off course and sailed over a cliff, killing Denis Burakov and leaving the other man badly injured. (AP Photo/Family photo provided by Yekaterina Achkasova, APTN)