Drug related crimes started to ramp up.
You can find drugs anywhere in Cancun, literally anywhere.
That's why you see vendors in shops getting murdered. Any club that I have been to in Cancun( pretty much did all of them, except maybe 2), you have people selling drugs inside the club in the bathroom and it's not like they hide.
Not sure how many times I heard
"cocaina amigoooo!".
It's simply the poor reality of their lifestyle. They are underpaid, they see tourists come and will do anything to make some money.
In Cancun, money buys you everything.
The government is stuck between 2 walls because they don't want to initiate a war against the cartel and turn off people from coming. So they let them do what they want when it comes to selling drugs. They want to avoid Cancun becoming Acapulco 2.0