Should Dietrich Bonhoeffer be considered a “martyr”? Craig J. Slane, in his book, Bonhoeffer as Martyrgave the various responses to that question, and these “responses and concerns”

…call for a careful examination of martyrdom in the Christian tradition to see whether and to what extent Bonhoeffer can be fitted into the category. This is no easy task, for the category itself has an evolutionary history. In the course of the examination it will become obvious that the Christian understanding of martyrdom is a matter of historical development of and elaboration upon the relation between the life and death of Jesus and the lives and deaths of his followers (34).