The seemingly-isolated murder of Diedre Kresson starts to pay major dividends in “The Pager.” First, there is the ballistics match to the two other Barksdale murders. Then Bunk finally tracks down a working phone number for Tywanda, the friend of Diedre who was the one who provided the key information that “Dee” visited Diedre on the night of the murder.
So when McNulty and Bunk go to question her, it marks the first time they have access to some real insider information on the crew. Tywanda’s behavior shows her ambivalence. She is eager to tell her story, which is clear in the way she greets them with “what took you so long,” but she is also anxious. She nervously closes the curtains on all of the windows (a gesture that links her to the paranoid Avon), and asks if the detectives were followed. As nervous as she is, though, she is all too happy to tell everything she knows.
And she knows a lot. Perhaps she is so eager to talk, because she realizes that this is the best way to avenge Diedre’s death. She gives McNulty some general information on Avon’s womanizing, the way he sits in the club “like he was the king of everything.” She also mentions that Diedre threatened to write a letter about Avon’s illegal activities. If she never did write that letter, she at least gets the desired effect, because her friend gives the police the most important information so far: the specific names of several of Avon’ assets, most notably Orlando’s. This offers the first scent that they will be able to follow on the money trail.
But there is one other way that Diedre get her vengeance on Avon. Her best friend, Tywanda, was clearly “running the streets,” playing the game with the rest of them. But now, after the murder of her close friend, she seems to have changed her life. She says she is out of the game, and she has clearly renounced the vow to not talk to the police. She has a notebook on her table (one that McNulty rifles through when she is not looking), which probably suggests that she is now a student, working to build a life of herself, a life where she will never have to hear that tap tap tap at her window. And either way, she has already closed the blinds.