Trigger Vachon

Trigger Vachon, a French-Canadian dry-cleaning driver and later a parking-garage attendant, appears only a few times in Insomnia, but each encounter supplies Ralph Roberts with a vital piece of the puzzle surrounding Ed Deepneau's madness. A talkative, good-natured man with a thick accent and a gift for remembering odd details, Vachon serves as an unwitting messenger whose chance observations help Ralph connect the dots between Ed's erratic behavior, his flying lessons, and the kamikaze symbolism that defines his final act.

Identity and Background

Trigger Vachon is one of the "Harris Avenue Old Crocks" who gather at the picnic area near Runway 3, though he is younger than most of them. He works for Derry Dry Cleaners, driving a panel truck that smells of clean, freshly pressed clothes, an aroma Ralph finds reminiscent of fresh bread. Vachon is a familiar figure on the west side of Derry, known for his cheerful demeanor and his habit of saving business cards to write notes on. He is also a veteran of the Pacific theater of World War II, a fact that becomes crucial when he recognizes the symbols on Ed Deepneau's scarf.

Key Encounters with Ralph Roberts

Vachon first appears on the day of Carolyn Roberts's first seizure, July 1992. He pulls over in his laundry truck after Ed Deepneau's road-rage accident near the airport service gate. Ralph, recognizing Vachon as "Trigger, the youngest" of the Vachon brothers from Old Cape, uses the encounter to get a ride home. During the short trip, Vachon casually notes that Ed must have had a pass to use the airport service gate, a detail that later proves significant when Ralph learns Ed was taking flying lessons at SoloTech. Vachon also sees Ralph draw the Japanese characters from Ed's scarf in the condensation on the windshield and remarks that they look "a little familiar."

Over a year later, in October 1993, Vachon reappears working as the attendant in the Derry Home Hospital parking garage. He has been laid off from the dry-cleaning business but prefers the garage job, enjoying his little TV and the lack of pressure. When Ralph and Lois emerge after their long sojourn on the hospital roof, Vachon stops them, having finally remembered what bothered him about Ed's scarf. He produces a business card on which his older brother Marcel, a Pacific veteran, had written the meaning of the red symbols: "KAMIKAZE." Vachon explains that Marcel brought back a scarf with the same two marks, and that he copied the symbols from Ralph's windshield drawing before they could melt away. He apologizes for taking so long to remember, but Ralph realizes the timing is no accident.

Narrative Role and Significance

Vachon functions as a herald figure, delivering a piece of information that transforms Ralph's understanding of Ed Deepneau from a deranged activist into a suicide bomber. The word "kamikaze" — Divine Wind — crystallizes everything Ralph has been piecing together: Ed's flying lessons, his access to the airport, his increasingly fanatical rhetoric, and the scarf he wore as a talisman. Vachon's role is entirely passive; he does not understand the significance of what he carries, but his chance memory, triggered by seeing Ralph again, provides the final key. He is also a reminder of the ordinary, decent people of Derry who, without knowing it, are caught up in the larger forces of the Purpose and the Random. His final appearance, waving the old wallet and grinning, underscores the novel's theme that even the smallest, most forgetful characters can be instruments of fate.