Pablo Escobar One of the most notorious drug lords ever was Colombia’s Pablo Escobar. The leader of the Medellin Cartel was dubbed “The World’s Greatest Outlaw.” Escobar ruthlessly controlled four fifths of the world cocaine market through the 1970s and 80s by shipping an estimated 15 tons of cocaine per day. By 1989, he was the seventh wealthiest man in the world. During his reign of terror, he was responsible for more than 4,000 deaths before he died in 1993 while being chased by Colombian authorities.