Mysteries still surround death of climber during lightening storm

Laramie, WY – Investigators have been unable to definitively explain how a 21-year-old man fell to his death in July. The man from Iowa was knocked off Grand Teton Mountain by a lightning bolt.
He fell about 3,000 feet on July 21 even though he was connected to a climbing rope.
Investigators say it's difficult to confirm why Brandon Oldenkamp's rope failed but evidence seems to point to an improper attachment to his harness.
Hypothermia, cold hands, lack of experience and the intensity of the situation were all contributing factors.
The report lists lightning as the primary contributing factor to the incident.
A lightning storm hit Oldenkamp and 16 other climbers in three separate parties on the top 500 feet of the Grand Teton.