 D'Angelo refuses to take part in the plan and, disgusted by his uncle's immorality, declares that he wants nothing more to do with his family or with Stringer.Stringer Bell grows afraid that D'Angelo may inform on the organization and hires a contract killer from Washington D.C., who in turn arranges for a prisoner to strangle D'Angelo with a belt in the back room of the library, staging his scene to look like a suicide.No investigation is launched, although McNulty becomes convinced that it was a murder when he is belatedly informed and investigates it, on his own.