Secrets of the Dead

S1, E6: The mysteries of the dead are uncovered in this installment of the hit documentary series. This time around, forensic pathologists and other specialists search for answers in several tough cases: a severed hand is found on a riverbank; the bodies of a mother and her infant are discovered after the spring thaw; the only clue to a doctor's mysterious death is a bite mark; and a young bride disappears years after her husband's first wife supposedly killed herself.