Unsung hero hailed Vet lost leg but not hope BY LISA MUÑOZ DAILY NEWS STAFF WRITER Vietnam veteran John Devine remembers lifting up the hospital bedsheet, seeing just one leg and thinking, "At least I got one." An enemy mortar had destroyed his right leg and taken the life of a soldier beside him, yet Devine managed to look on the bright side. The Massapequa man would later give in to years of feeling sorry for himself before reaching a turning point when he decided to be happy and enjoy life, he said. Devine, 57, who dedicated his life to...