KILLINGTON — A 27-year-old Massachusetts man tumbled to his death Sunday after losing control on one of Killington Ski Resort's most challenging trails. Vermont State Police said Andrew Begley of Cambridge, Mass. apparently lost control while skiing on the Double Dipper trail, which is rated a "double black diamond" run. "Our initial interviews indicate that the victim was a fairly experienced skier," said Lt. David Covell of the State Police. "From witness accounts, he was skiing on one of the more advanced trails and simply lost control." Covell said Begley slid "a significant distance," going off the Double Dipper trail...