Preparation for the rest of the story

Most of the beginning of section 2 is about the various detectives who work on the case and their different theories. As the reader we know some of these theories to be correct, for example "Dewey--and the majority of his colleagues, as well--favored the second hypothesis...." (82) the second hypothesis being that there were two murderers, which we know to be correct. Some of these theories on the other hand we know to be completely wrong, for example Duntz's "John Senior and John Junior" (86) story in which the murderers are father and son. Thinking along the lines that Capote wants to increase suspense, one purpose of this may be to prepare for the rest of the book. Capote is giving the detectives a starting place: it can be expected that as the novel proceeds they will inch closer to discovering that Dick and Perry did it. This of course adds to suspense because the reader does not know when they will be caught. Considering section 3 is called "answer" I suspect it will contain much of this chase for the killers. This is not for most of a section and I find it curious that Capote sets this up so early. It may be because he wants ideas to germinate in the back of the reader's head while they read section 2. There are multiple things about the murder which are unknown to the citizens of Holcomb, some of which are also unknown to the reader. Chiefly among them are who did it, and possibly more important, why. The reader doesn't know why these murders took place which may be because Capote like other good writers wants to give the reader time to form their own opinion. And this may be why he introduces this topic so early: to make the reader form an opinion, and have it be tested by the actual story.