How does the author use foreshadowing in Dirk Gently's Holistic Detective Agency?

Gordon Way's death is foreshadowed from the first moment his character is introduced. Like many elements of the early chapters, his long-winded voice message on Susan's answering machine will be revisited later in the story, taking on greater importance. Gordon is shot by a hooded figure that the reader will immediately associate with the Electric Monk. At the end of the chapter, the writer inserts a new piece of foreshadowing. Gordon is surprised at what happens after his death, implying that Gordon survives after his death, at least long enough to be surprised.