In the SeriesEdit
In Dead Beat, the Ectomancer, Mortimer Lindquist knows his ghost and finally agrees to help Harry find information from the spirits on the Necromancers, the Heirs of Kemmler because Morty knows him and for Karrin Murphy, his daughter. 
In Dead Beat, Harry hears the story from Henry Rawlins about how thirty hears ago, when Henry was a young cop, he went down an alley after hearing a woman scream. He saw somethng that still gives him bad dreams. It was strangling the girl, Henry emptied his gun into it, and pick him up, slams him into a wall. That was when Collin Murphy showed up with rock salt loaded in his shotgun and killed it. The sun rises, burning it.