How does the author use foreshadowing in Red Dragon?

Foreshadowing is a strong part of Chapter One. The introduction of the two murder cases sets the scene for the mystery to be played out in the remainder of the novel. However, this is not the only foreshadowing in this chapter. The reader is also introduced to three main characters, Graham, Crawford, and less obviously, the killer. These introductions lay the groundwork that the rest of the plot will build on.

There is also foreshadowing in Molly's reluctance to allow Graham to take on the case. This reluctance opens a door to Graham's past, to his relationship with Lecter, and to his unique gifts when searching for serial killers. These are all very important points to the plot, as well as the strain Graham's decision causes on his marriage, which again is an important plot point. Molly's relenting and allowing Graham to go also speaks to the nature of their relationship and foreshadows the future of this relationship.