- "I'm just an honest car salesman. Seems like you just don't know who you can trust these days."
- ―William Dewey
Dewey met Argentinian Consul General Juan Francisco Valdez at a bar. Dewey offered Valdez a substantial bribe to purchase a Packard from his dealership. Valdez accepted the deal. At the dealership, Valdez became infatuated with one of Dewey's mechanics, Gabriel Del Gado. However, this would only enrage Gabriel.
Events of L.A. Noire
Del Gado stole Valdez's car that he had pruchased at the dealership in order to get revenge. Detectives Cole Phelps and Stefan Bekowsky investigated the car, which had ended up in Oswald Jacobs backyard. At the scene, Phelps found a wrench that belonged to Dewey's dealership. Once at the dealership, Dewey lead Phelps and Bekowsky to the garage, in which they found out that the wrench at the scene of where Valdez's Packard was found belonged to Gabriel. After finding out that Dewey was in the habit of hiring illegal workers because they could be paid less, Dewey gave up the address of Del Gado, leading the detectives to him.
- Upon Reflection (Intro)
- Dewey also appears in the start of L.A. Noire. In the opening cutscene he is seen selling a car to an old gentlemen outside his Packard Dealership.