Gangsters: America's Most Evil

Juan Ramon Matta-Ballesteros became one of the most powerful drug lords south of the border.

Dustin Honken was a chemist who made and sold a deadly concoction of crystal methamphetamine.

How James Spencer Springette went from selling juice to tourists to distributing cocaine.

Ludwig Tarzan Fainberg was a middleman between the Russian Mafia and the Medellín Cartel.

The patriarchs of the Black Mafia Family controlled one of the largest cocaine distribution gangs.

Albanian immigrant Alex Rudaj muscles in on Italian Mafia territory.

In 1986 Detroit, Demetrius Holloway rose to become one of Detroit's most notorious drug kingpins.

An in-depth look at the leader of a sex trafficking enterprise, Rances Ulices Amaya.

A look at one of the few women to rise up the ranks of the dangerous Cali Cartel, Mery Valencia.

An in-depth look at Cheng Chui Ping, who was involved in human trafficking for over 20 years.