Guarda su CineBlog01. On February th 1970, Carlos Castañeda de la Fuente tried to assassinate the Mexican President to avenge the Tlatelolco massacre from October 2nd 1968, defying the most repressive regime in the contemporary Mexican history. Forty years later, this failed avenger survived the system´s disproportionate retaliation, only to wander Mexico City´s streets as a vagrant.