Sentence handed down , after drug kingpin 's earlier guilty plea . `` The successful prosecution of Cardenas Guillen underscores the joint resolve of the United States and Mexico to pursue and prosecute the leadership of the drug trafficking cartels , dismantle their organizations and end the violence and corruption they have spawned , '' U.S. Attorney Jose Angel Moreno said . 1999 : Cardenas Guillen in 1999 threatened to kill an undercover sheriff 's deputy . He also threatened the lives of two U.S. citizens .
Sentence handed down , after drug kingpin 's earlier guilty plea . 1999 : Cardenas Guillen in 1999 threatened to kill an undercover sheriff 's deputy . He also threatened the lives of two U.S. citizens .