Mary Kathleen Rodriguez (5 of Spades, Texas)

For more than three decades, the question of who killed 26-year-old Mary Kathleen Rodriguez has hung over the town of West Odessa, Texas. Known as Kathleen to those who loved her, the live-in nanny was found brutally beaten to death inside the home of the couple she worked for. Although the case has changed hands from one detective to another, the original f…