New HBO series looks at iconic, troubled Yosemite climber Dean Potter
Dean Potter was an elite rock climber and high-altitude slackliner who died in 2015 in a wingsuit BASE leap in Yosemite Valley. A docuseries on Potter’s profession referred to as “The Dark Wizard” is premiering on HBO. Eric Perlman / HBO Filmmakers Nick Rosen and Peter Mortimer had been gathering analysis on the late Yosemite…