Former South Korean President Park Geun-hye was a study in determination as she strode into a packed Seoul courtroom Tuesday to begin a trial that could send her to prison for life if convicted on the most serious charges. Park's face betrayed no hint of whatever emotions roiled within, even as flashes exploded and a horde of cameras zoomed in for extreme close-ups that were piped to millions of curious South Koreans. Choi called herself a sinner, claimed Park had been framed in a conspiracy and declared her wish that the trial "truly frees former President Park of fault and lets her be remembered as a president who lived a life devoted to her country."