The mute six-year-old girl ran straight into the giant biker’s arms at Walmart, frantically signing through her tears… I froze as this massive man — tattoos, leather vest reading Demons MC — suddenly began signing back fluently. His hands moved with surprising gentleness, even as other shoppers backed away in fear. The little girl, barely forty pounds, clung to him like he was her only safe place. Her tiny hands flew through signs I couldn’t understand — but he could. His face shifted from conce