Gulf Cartel Boss Osiel Cárdenas Guillén Extradited to United States

Osiel Cárdenas Guillén, the Gulf Cartel's most powerful leader and founder of Los Zetas, is extradited to the United States — the first major cartel extradition of the Calderón era. Without their kingpin, the Gulf Cartel begins a power struggle. Cárdenas Guillén is later sentenced to 25 years in the US. His extradition accelerates the rivalry between the Gulf Cartel and its armed wing, Los Zetas.