sentences:  He worked first searching for emeralds and then as guard, and he started making a name for himself, often being called the "emerald tsar".It was then that Molina met a young Gonzalo Rodríguez Gacha, "El Mexicano," who would become years later the most feared kingpin in the infamous Medellín Cartel.Rodríguez Gacha had moved to the area to look for a better life and he soon became part of Molina's group, as a hitman, and then as his head of security.