From the evidence above and documentaries it seemed the Medellin Cartel didn't have much control over the retail sales of drugs and the street gangs that plagued Medellin city. The Sinaloa cartel never had high murder rates in their cities or state they always relied on third party support to do their dirty work in other cartel's territory. So what was the cause for all these high murder rates in Medellin city, the headquarters of the Medellin Cartel?