This leads the investigation to areas the commanding officers had hoped to avoid, including political contributions. When an associate of Avon Barksdale is arrested by State Police and offers to cooperate, the commanding officers order the detail to undertake a sting operation to wrap up the case. Detective Kima Greggs is seriously hurt in the operation, triggering an overzealous response from the rest of the department. This causes the detail's targets to suspect that they are under investigation. Wallace is murdered by his childhood friends Bodie and Poot, on orders from Stringer Bell, after leaving his "secure" placement with relatives and returning to Baltimore. D'Angelo Barksdale is eventually arrested transporting a kilo of uncut heroin, and learning of Wallace's murder, is ready to turn in his uncle and Stringer. However, D'Angelo's mother convinces him to rescind the deal and take the charges for his family. The detail manages to arrest Avon on a minor charge and gets one of his soldiers, Wee-Bey, to confess to most of the murders, some of which he did not commit. Stringer escapes prosecution and is left running the Barksdale empire. For the officers, the consequences of antagonizing their superiors are severe, with Daniels passed over for promotion and McNulty assigned out of homicide and into the marine unit. Season 2 The second season, along with its ongoing examination of the drug problem and its effect on the urban poor, examines the plight of the blue-collar urban working class as exemplified by dockworkers in the city port, as some of them get caught up in smuggling drugs and other contraband inside the shipping containers that pass through their port. In a season-long subplot, the Barksdale organization continues its drug trafficking despite Avon's imprisonment, with Stringer Bell assuming greater power. McNulty harbors a grudge against his former commanders for reassigning him to the marine unit. When thirteen unidentified young women are found dead in a container at the docks, McNulty successfully makes a spiteful effort to place the murders within the jurisdiction of his former commander. Meanwhile, police Major Stan Valchek gets into a feud with Polish-American Frank Sobotka, a leader of the International Brotherhood of Stevedores, a fictional dockers' union, over competing donations to their old neighborhood church. Valchek demands a detail to investigate Sobotka. A detail is assigned, but staffed with "humps". Valcheck threatens Burrell with a disruption of Burrell's confirmation hearings and insists