In 1977, Beth was twenty-three, beautiful, and rich. Her family lived in a mansion in the city’s wealthiest neighborhood, Arlen Heights. Her father had died in 1973, shot during a home invasion that was never solved, and her mother had died in a car accident two years later, leaving Beth alone in the house with an inheritance of millions. Beth had red hair, and she owned a trench coat. She also owned a car like the one the witness had seen. She said she’d been home at the time of both murders, drinking alone.