The Unforgotten

Season 6: Who Killed Missy Bevers? investigates the unsolved murder of a fitness instructor inside a Midlothian church, where a killer in tactical gear was caught on camera, but never identified. Season 5: Riding Shotgun investigates the case of Charles Flores, who has spent nearly three decades on death row after a key witness's story changed following police hypnosis. Season 4: Kill Site investigates the mysterious death of Christopher Whiteley, a case authorities ruled a mountain-lion attack despite evidence that didn't add up. Season 3: Finding Dolores Wulff unravels the 41-year-old mystery of a mother who vanished one night from her home in a small California town. Season 2: Unnatural Causes investigates the worst serial killer in Dallas history and the cracks in the system that helped him get away with murder again and again .