 After Greggs gets shot, Freamon tracks a page made by Wee-Bey Brice, one of the shooters, to a payphone where he finds evidence implicating the other shooter, Little Man.He then uses a contact in the phone company to trace call patterns and pinpoint Wee-Bey's whereabouts, leading to his arrest and conviction.Following the dissolution of the detail, Rawls notes Freamon's competence as a detective and transfers him back into Homicide; he makes room for Freamon by dumping McNulty to the Marine Unit in the fashion that Freamon had predicted.