Billy "the Hill" and the Jump HookGrowing up on the hardscrabble streets of LA in the late 1950s, Billy McGill stood out. At eleven he was dunking. At fifteen he was playing in pickup games against Bill Russell and Wilt Chamberlainand holding his own, in part because he invented the jump hook shot, which no one could defend. How he went from college phenom, well on his way to becoming the greatest player Los Angeles ever produced, to sleeping in abandoned houses and washing up in a