What are the two categories of violence in literature?

From the text:

Let’s think about two categories of violence in literature: the specific injury that authors cause characters to visit on one another or on themselves, and the narrative violence that causes characters harm in general. The first would include the usual range of behavior – shootings, stabbings, garrotings, drownings, poisonings, bludgeonings, bombings, hit-and-run accidents, starvations, you name it. By the second, authorial violence, I mean the death and suffering authors introduce into their work in the interest of plot advancement or thematic development and for which they, not their characters, are responsible.