Dean Potter

The deaths come almost two weeks after another fatal accident in Yosemite.
Using a GoPro and a camera crew, Potter managed to film the entire event. Everything from sliding the pup out to an isolated
Johnny Cash may have sang "I Walk The Line," but that's a lot different than actually walking it. Especially when the line
National Geographic Adventure has posted video of rock climber Dean Potter, a 2009 Adventurer of the Year honoree. Potter