A CLIMBING influencer plunged to his death while livestreaming a daring ascent of Yosemite’s iconic El Capitan, leaving his viewers shocked and heartbroken. Balin Miller, 23, fell Wednesday as he was rope-sloping the sheer 3,000-foot granite face, his mum Jeanine Girard-Moorman confirmed. “He’s been climbing since he was a young boy,” she told the Associated Press….