Colombian drug lord Pablo Escobar's brutal Medellín Cartel was responsible for trafficking tons of cocaine to North America and Europe in the 1980s and '90s. The nation became a warzone as his sicarios mercilessly murdered thousands of people-competitors, police, and civilians-to ensure he remained Colombia's reigning kingpin. With billions in personal income, Pablo Escobar bought off politicians and lawmen, and became a hero to poorer communities...