From the National Park Service:

Mt. McKinley Climbing Fatality Identified
Date: May 21, 2012
TALKEETNA, Alaska: The mountaineer who died in a climbing fall on Friday, May 18 on Mt. McKinley’s West Buttress is identified as Steffen Machulka of Halle, Germany. Machulka, age 49, fell from 16,200-feet after ascending the ‘headwall’ or ‘fixed lines’ section of the West Buttress route. Machulka, who was not roped to his two climbing partners, fell 1,100 feet down the north face of the buttress to an elevation of 15,100 feet on the Peters Glacier. A witness to the event indicated the climber fell while attempting to recover his backpack which had started to slide downhill.
Soon after the fall was reported, Denali National Park’s A-Star B3 helicopter pilot and two NPS ranger-paramedics flew to the victim and confirmed that Machulka had died of injuries sustained in the fall. Machulka’s body was recovered and flown back to Talkeetna that evening.

At the time of the fall, an NPS mountaineering patrol was ascending the fixed lines shortly behind the 3-member team. The patrol quickly arrived at the fall site and immediately contacted fellow NPS rangers via radio to initiate a helicopter response. At 5:15 pm, Denali National Park’s A-Star B3 helicopter launched from Talkeetna in clear, calm weather conditions. With two ranger-paramedics on board, the helicopter flew to the location of the victim. NPS rangers confirmed that the climber had died of injuries sustained in the fall. The body was recovered and flown back to Talkeetna.
There are currently 336 mountaineers attempting routes on Mt. McKinley. Four climbers have reached the summit this season. This fatal fall is the first serious incident on Mt. McKinley of the 2012 mountaineering season.

(5.25.12)