Service of All the Dead is a crime novel by Colin Dexter, the fourth novel in his Inspector Morse series.
This curious fact sparks his attention and he begins to take an active interest in the case.
Morse confronts the murderer, revealed to be Harry Josephs, atop the church tower.
She explains how she was hard up for money and agreed to help Lionel Lawson in a plot to murder Harry Josephs.
This book mostly takes the form of court proceedings as Morse reveals how the murderer Harry Josephs committed the crimes.
He guesses that the first victim was Philip Lawson and Ruth's role was mainly to misidentify the body as that of Harry Josephs.
He subsequently explains how Harry murdered the Morris father and son and then his wife Brenda.
In the last scene, Morse visits Ruth at her flat after her release and they start a romantic relationship.