El Mencho sold drugs in San Francisco before becoming brutal cartel king — was deported twice

Source: New York Post

The vicious cartel boss El Mencho cut his teeth as a small-time drug dealer in San Francisco — where he lived for years even after being deported in the 1980s and 1990s — before becoming a most-wanted narcotics kingpin at one of “most powerful and ruthless criminal organizations” in Mexico, according to drug enforcement authorities. El Mencho, born Nemesio Rubén Oseguera Cervantes, illegally crossed the US-Mexico border multiple times during the 1980s under assumed identities like Rubén Ávila, José López Prieto, Miguel Valadez, according to Univision. 5 El Mencho was arrested by San Francisco police in 1986 for possession of stolen property and a gun.