Seventeen-year-old Alissa Turney vanished on the last day of school in Phoenix, Arizona — and was never seen again. What began as a reported runaway case slowly unraveled into a disturbing investigation involving family secrets, explosives, and years of unanswered questions. In this episode of Grim & Guilty, we break down the full timeline, the suspects, and why Alissa’s case remains one of the most haunting unsolved disappearances in Arizona history.