The inheritors of Pablo Escobar’s drug trafficking empire in Colombia, the Oficina de Envigado is now a hodgepodge of smaller organizations that seeks alliances with street gangs to keep control of their territory and businesses. It is in nearly constant flux. The Oficina de Envigado first arose as a faction of assassins established by Pablo Escobar in Envigado, a small municipality adjacent to Medellín, in the 1980s. Since then, the Oficina has evolved into a sizeable, though conflicted, drug-running operation, drawing many of its leaders from former paramilitary blocs, while its lower ranks are filled with an endless pool of willing young men from the working-class neighborhoods of Medellín.