Pablo Escobar used to smuggle.
The Medellín Cartel was an organized network of drug suppliers and smugglers originating in the city of Medellín , Colombia . Pablo Escobar . He was often called `` The King of Cocaine '' and was the wealthiest criminal in history , with an estimated known net worth of US $ 30 billion by the early 1990s ( equivalent to about $ billion as of ) , making him one of the richest men in the world at his prime . His drug network was commonly known as the Medellín Cartel , which often competed with rival cartels domestically and abroad , resulting in massacres and the murders of police officers , judges , locals , and prominent politicians .