MEXICO CITY (AP) — Notorious drug lord Osiel Cárdenas Guillén has been returned to Mexico after serving a U.S. sentence and was quickly re-arrested and sent to a maximum security prison to ...

The United States has released Osiel Cardenas Guillen, former leader of the Gulf Cartel and founder of the Zetas, an armed organization that played a salient role in violent turf wars that marked ...

Paramedics work on Juan Jesús Guerrero Chapa, a personal lawyer for Gulf cartel boss Osiel Cárdenas, after removing his body from the Range Rover where he was shot by masked assassins in a hit ...