A mountaineer's personal loss fueled his historic ascent and ski down Mount Everest's treacherous North Face.  Jim Morrison had dreamed about summitting the mountain's peak, and when he made it to the top with filmmaker Jimmy Chin and a group of 12 others last October, he'd already completed what's considered one of the world's most challenging climbs. Everest's north side  stretches  29,000 feet, and it's much darker and more exposed to the elements than some of the mountain's other routes.  "