They find Page, who tells them the customer was not Gruneman but an older man. Page's body then turns up in the Kill Van Kull. Klute deduces a connection between the two "suicides" of the prostitutes, surmising that the client probably also killed Gruneman and may kill Daniels next. He revisits Gruneman's contacts to find connections with the case. By typographic comparison, the supposed obscene letters of Gruneman are traced to Cable, with whom Klute has been meeting to report on his investigation.