To explain what I'm getting at: The idea for the con I wanted to use was that he'd go in and pretend to be someone that the Johnson's father had been working with, and "accidentally" let slip that he had some information that nobody else does that would influence how things shook out with the company now that the guy's dead - thus pulling the killer to him out of a desire to find out what that information is, and perhaps to secure his cooperation. The specific structure sort of relies on introducing himself, as his alias, to the Johnson, for the benefit of people in the crowd.
Unfortunately, he didn't really get much new information from his legwork at all, which makes it hard to plan the specifics...
