For both Paul Mariani and Mark Jarman, the mystery is theological.
Detectives, like pastors, examine the unknowable to reveal the knowable.
In the days after my grandmother died, my aunts introduced me to Iris DeMent's song “Let the Mystery Be." As is true for many people, from the early years of Christian faith, the loss of one dear to me sparked wonderings about what happens after death. I have fuzzy, 15-year-old memories of one of my aunts thinking aloud about the possibility of reincarnation, and older family members assuring us all that my grandmother was sitting at the feet of Jesus.
Compared to cosmologists, theologians have the advantage—and disadvantage—of revelation.