In February 2014, Aspen socialite Nancy Pfister was murdered in her own home, brutally bludgeoned, wrapped in a sheet, and stuffed inside a locked closet. The question was: Who did it?Fewer than twelve hours after her body was found and without any evidence, police decided a married couple from Denver had killed her. Within a few days, they arrested and charged Nancy Styler, a friend of Pfister's who'd had a falling out with her after a business deal went sour, and...