Plot: In a headline-grabbing case, 22-year-old Sheena Morris was found hanged in a Florida hotel room on New Year's Day 2009, just hours after reports of an altercation between Sheena and her fiancé, Joe, now 48. Her death was ruled a suicide, but Sheena's parents refuse to believe that their daughter would take her own life -- they feel she was murdered, and that Joe may be responsible