Probe alleging 'El Chapo' sons fed victims to tigers led to case against top Mexican politician: court docs

While the Mexican government insists it needs more proof before acting on a U.S. request to hand over the former governor of Sinaloa, court records suggest the case against Ruben Rocha stems from a sprawling investigation into the sons of former Sinaloa cartel boss Joaquin El Chapo" Guzman Loera.